abase – To lower in position, estimation, or the like; degrade.
abbess – The lady superior of a nunnery.
abbey – The group of buildings which collectively form the dwelling-place of a society of monks or nuns.
abbot – The superior of a community of monks.
abdicate – To give up (royal power or the like).
abdomen – In mammals, the visceral cavity between the diaphragm and the pelvic floor;the belly.
abdominal – Of, pertaining to, or situated on the abdomen.
abduction – A carrying away of a person against his will, or illegally.
abed – In bed; on a bed.
aberration – Deviation from a right, customary, or prescribed course.
abet – To aid, promote, or encourage the commission of (an offense).
abeyance – A state of suspension or temporary inaction.
abhorrence – The act of detesting extremely.
abhorrent – Very repugnant; hateful.
abidance – An abiding.
abject – Sunk to a low condition.
abjure – To recant, renounce, repudiate under oath.
able-bodied – Competent for physical service.
ablution – A washing or cleansing, especially of the body.
abnegate – To renounce (a right or privilege).
abnormal – Not conformed to the ordinary rule or standard.
abominable – Very hateful.
abominate – To hate violently.
abomination – A very detestable act or practice.
aboriginal – Primitive; unsophisticated.
aborigines – The original of earliest known inhabitants of a country.
aboveboard – & – Without concealment, fraud, or trickery.
abrade – To wear away the surface or some part of by friction.
abrasion – That which is rubbed off.
abridge – To make shorter in words, keeping the essential features, leaning out minor particles.
abridgment – A condensed form as of a book or play.
abrogate – To abolish, repeal.
abrupt – Beginning, ending, or changing suddenly or with a break.
abscess – A Collection of pus in a cavity formed within some tissue of the body.
abscission – The act of cutting off, as in a surgical operation.
abscond – To depart suddenly and secretly, as for the purpose of escaping arrest.
absence – The fact of not being present or available.
absent-minded – Lacking in attention to immediate surroundings or business.
absolution – Forgiveness, or passing over of offenses.
absolve – To free from sin or its penalties.
absorb – To drink in or suck up, as a sponge absorbs water.
absorption – The act or process of absorbing.
abstain – To keep oneself back (from doing or using something).
abstemious – Characterized by self denial or abstinence, as in the use of drink, food.
abstinence – Self denial.
abstruse – Dealing with matters difficult to be understood.
absurd – Inconsistent with reason or common sense.
abundant – Plentiful.
abusive – Employing harsh words or ill treatment.
abut – To touch at the end or boundary line.
abyss – Bottomless gulf.
academic – Of or pertaining to an academy, college, or university.
academician – A member of an academy of literature, art, or science.
academy – Any institution where the higher branches of learning are taught.
accede – To agree.
accelerate – To move faster.
accept – To take when offered.
access – A way of approach or entrance; passage.
accessible – Approachable.
accession – Induction or elevation, as to dignity, office, or government.
accessory – A person or thing that aids the principal agent.
acclaim – To utter with a shout.
accommodate – To furnish something as a kindness or favor.
accompaniment – A subordinate part or parts, enriching or supporting the leading part.
accompanist – One who or that which accompanies.
accompany – To go with, or be associated with, as a companion.
accomplice – An associate in wrong-doing.
accomplish – To bring to pass.
accordion – A portable free-reed musical instrument.
accost – To speak to.
account – A record or statement of receipts and expenditures, or of business transactions.
accouter – To dress.
accredit – To give credit or authority to.
accumulate – To become greater in quantity or number.
accuracy – Exactness.
accurate – Conforming exactly to truth or to a standard.
accursed – Doomed to evil, misery, or misfortune.
accusation – A charge of crime, misdemeanor, or error.
accusatory – Of, pertaining to, or involving an accusation.
accuse – To charge with wrong doing, misconduct, or error.
accustom – To make familiar by use.
acerbity – Sourness, with bitterness and astringency.
acetate – A salt of acetic acid.
acetic – Of, pertaining to, or of the nature of vinegar.
ache – To be in pain or distress.
Achillean – Invulnerable.
achromatic – Colorless,
acid – A sour substance.
acidify – To change into acid.
acknowledge – To recognize; to admit the genuineness or validity of.
acknowledgment – Recognition.
acme – The highest point, or summit.
acoustic – Pertaining to the act or sense of hearing.
acquaint – To make familiar or conversant.
acquiesce – To comply; submit.
acquiescence – Passive consent.
acquire – To get as one’s own.
acquisition – Anything gained, or made one’s own, usually by effort or labor.
acquit – To free or clear, as from accusation.
acquittal – A discharge from accusation by judicial action.
acquittance – Release or discharge from indebtedness, obligation, or responsibility.
acreage – Quantity or extent of land, especially of cultivated land.
acrid – Harshly pungent or bitter.
acrimonious – Full of bitterness.
acrimony – Sharpness or bitterness of speech or temper.
actionable – Affording cause for instituting an action, as trespass, slanderous words.
actuality – Any reality.
actuary – An officer, as of an insurance company, who calculates and states the risks and premiums.
actuate – To move or incite to action.
acumen – Quickness of intellectual insight, or discernment; keenness of discrimination.
acute – Having fine and penetrating discernment.
adamant – Any substance of exceeding hardness or impenetrability.
addendum – Something added, or to be added.
addle – To make inefficient or worthless; muddle.
adduce – To bring forward or name for consideration.
adhere – To stick fast or together.
adherence – Attachment.
adherent – Clinging or sticking fast.
adhesion – The state of being attached or joined.
adieu inter. Good-by; farewell.
adjacency – The state of being adjacent.
adjacent – That which is near or bordering upon.
adjudge – To award or bestow by formal decision.
adjunct – Something joined to or connected with another thing, but holding a subordinate place.
adjuration – A vehement appeal.
adjutant – Auxiliary.
administrator – One who manages affairs of any kind.
admissible – Having the right or privilege of entry.
admittance – Entrance, or the right or permission to enter.
admonish – To warn of a fault.
admonition – Gentle reproof.
ado – unnecessary activity or ceremony.
adoration – Profound devotion.
adroit – Having skill in the use of the bodily or mental powers.
adulterant – An adulterating substance.
adulterate – To make impure by the admixture of other or baser ingredients.
adumbrate – To represent beforehand in outline or by emblem.
advent – The coming or arrival, as of any important change, event, state, or personage.
adverse – Opposing or opposed.
adversity – Misfortune.
advert – To refer incidentally.
advertiser – One who advertises, especially in newspapers.
advisory – Not mandatory.
advocacy – The act of pleading a cause.
advocate – One who pleads the cause of another, as in a legal or ecclesiastical court.
aerial – Of, pertaining to, or like the air.
aeronaut – One who navigates the air, a balloonist.
aeronautics – the art or practice of flying aircraft
aerostat – A balloon or other apparatus floating in or sustained by the air.
aerostatics – The branch of pneumatics that treats of the equilibrium, pressure, and mechanical properties.
affable – Easy to approach.
affect – To act upon
affectation – A studied or ostentatious pretense or attempt.
affiliate – Some auxiliary person or thing.
affirmative – Answering yes; to a question at issue.
affix – To fasten.
affluence – A profuse or abundant supply of riches.
affront – An open insult or indignity.
afire – & – On fire, literally or figuratively.
afoot – In progress.
aforesaid – Said in a preceding part or before.
afresh – Once more, after rest or interval.
afterthought – A thought that comes later than its appropriate or expected time.
agglomerate – To pile or heap together.
aggrandize – To cause to appear greatly.
aggravate – To make heavier, worse, or more burdensome.
aggravation – The fact of being made heavier or more heinous, as a crime , offense, misfortune, etc.
aggregate – The entire number, sum, mass, or quantity of something.
aggress – To make the first attack.
aggression – An unprovoked attack.
aggrieve – To give grief or sorrow to.
aghast – Struck with terror and amazement.
agile – Able to move or act quickly, physically, or mentally.
agitate – To move or excite (the feelings or thoughts).
agrarian – Pertaining to land, especially agricultural land.
aide-de-camp – An officer who receives and transmits the orders of the general.
ailment – Slight sickness.
airy – Delicate, ethereal.
akin – Of similar nature or qualities.
alabaster – A white or delicately tinted fine-grained gypsum.
alacrity – Cheerful willingness.
albeit conj. Even though.
albino – A person with milky white skin and hair, and eyes with bright red pupil and usually pink iris.
album – A book whose leaves are so made to form paper frames for holding photographs or the like.
alchemy – Chemistry of the middle ages, characterized by the pursuit of changing base metals to gold.
alcohol – A volatile, inflammable, colorless liquid of a penetrating odor and burning taste.
alcoholism – A condition resulting from the inordinate or persistent use of alcoholic beverages.
alcove – A covered recess connected with or at the side of a larger room.
alder – Any shrub or small tree of the genus Alumnus, of the oak family.
alderman – A member of a municipal legislative body, who usually exercises also certain judicial functions.
aldermanship – The dignity, condition, office, or term of office of an alderman.
alias – An assumed name.
alien – One who owes allegiance to a foreign government.
alienable – Capable of being aliened or alienated, as lands.
alienate – To cause to turn away.
alienation – Estrangement.
aliment – That which nourishes.
alkali – Anything that will neutralize an acid, as lime, magnesia, etc.
allay – To calm the violence or reduce the intensity of; mitigate.
allege – To assert to be true, especially in a formal manner, as in court.
allegory – The setting forth of a subject under the guise of another subject of aptly suggestive likeness.
alleviate – To make less burdensome or less hard to bear.
alley – A narrow street, garden path, walk, or the like.
alliance – Any combination or union for some common purpose.
allot – To assign a definite thing or part to a certain person.
allotment – Portion.
allude – To refer incidentally, or by suggestion.
allusion – An indirect and incidental reference to something without definite mention of it.
alluvion – Flood.
ally – A person or thing connected with another, usually in some relation of helpfulness.
almanac – A series of tables giving the days of the week together with certain astronomical information.
aloof – Not in sympathy with or desiring to associate with others.
altar – Any raised place or structure on which sacrifices may be offered or incense burned.
alter – To make change in.
alteration – Change or modification.
altercate – To contend angrily or zealously in words.
alternate – One chosen to act in place of another, in case of the absence or incapacity of that other.
alternative – Something that may or must exist, be taken or chosen, or done instead of something else.
altitude – Vertical distance or elevation above any point or base-level, as the sea.
alto – The lowest or deepest female voice or part.
altruism – Benevolence to others on subordination to self-interest.
altruist – One who advocates or practices altruism.
amalgam – An alloy or union of mercury with another metal.
amalgamate – To mix or blend together in a homogeneous body.
amateur – Practicing an art or occupation for the love of it, but not as a profession.
amatory – Designed to excite love.
ambidextrous – Having the ability of using both hands with equal skill or ease.
ambiguous – Having a double meaning.
ambitious – Eagerly desirous and aspiring.
ambrosial – Divinely sweet, fragrant, or delicious.
ambulance – A vehicle fitted for conveying the sick and wounded.
ambulate – To walk about
ambush – The act or state of lying concealed for the purpose of surprising or attacking the enemy.
ameliorate – To relieve, as from pain or hardship
amenable – Willing and ready to submit.
Americanism – A peculiar sense in which an English word or phrase is used in the United States.
amicable – Done in a friendly spirit.
amity – Friendship.
amorous – Having a propensity for falling in love.
amorphous – Without determinate shape.
amour – A love-affair, especially one of an illicit nature.
ampere – The practical unit of electric-current strength.
ampersand – The character &; and.
amphibious – Living both on land and in water.
amphitheater – An edifice of elliptical shape, constructed about a central open space or arena.
amplitude – Largeness.
amply – Sufficiently.
amputate – To remove by cutting, as a limb or some portion of the body.
amusement – Diversion.
anachronism – Anything occurring or existing out of its proper time.
anagram – The letters of a word or phrase so transposed as to make a different word or phrase.
analogous – Corresponding (to some other) in certain respects, as in form, proportion,relations.
analogy – Reasoning in which from certain and known relations or resemblance others are formed.
analyst – One who analyzes or makes use of the analytical method.
analyze – To examine minutely or critically.
anarchy – Absence or utter disregard of government.
anathema – Anything forbidden, as by social usage.
anatomy – That branch of morphology which treats of the structure of organisms.
ancestry – One’s ancestors collectively.
anecdote – A brief account of some interesting event or incident.
anemia – Deficiency of blood or red corpuscles.
anemic – Affected with anemia.
anemometer – An instrument for measuring the force or velocity of wind.
anesthetic – Pertaining to or producing loss of sensation.
anew – Once more.
angelic – Saintly.
Anglophobia – Hatred or dread of England or of what is English.
Anglo–Saxon – The entire English race wherever found, as in Europe, the United States, or India.
angular – Sharp-cornered.
anhydrous – Withered.
animadversion – The utterance of criticism or censure.
animadvert – To pass criticism or censure.
animalcule – An animal of microscopic smallness.
animate – To make alive.
animosity – Hatred.
annalist – Historian.
annals – A record of events in their chronological order, year by year.
annex – To add or affix at the end.
annihilate – To destroy absolutely.
annotate – To make explanatory or critical notes on or upon.
annual – Occurring every year.
annuity – An annual allowance, payment, or income.
annunciation – Proclamation.
anode – The point where or path by which a voltaic current enters an electrolyte or the like.
anonymous – Of unknown authorship.
antagonism – Mutual opposition or resistance of counteracting forces, principles, or persons.
Antarctic – Pertaining to the south pole or the regions near it.
ante – In the game of poker, to put up a stake before the cards are dealt.
antecede – To precede.
antecedent – One who or that which precedes or goes before, as in time, place, rank, order, or causality.
antechamber – A waiting room for those who seek audience.
antedate – To assign or affix a date to earlier than the actual one.
antediluvian – Of or pertaining to the times, things, events before the great flood in the days of Noah.
antemeridian – Before noon.
antemundane – Pertaining to time before the world’s creation.
antenatal – Occurring or existing before birth.
anterior – Prior.
anteroom – A room situated before and opening into another, usually larger.
anthology – A collection of extracts from the writings of various authors.
anthracite – Hard coal.
anthropology – The science of man in general.
anthropomorphous – Having or resembling human form.
antic – A grotesque, ludicrous, or fantastic action.
Antichrist – Any opponent or enemy of Christ, whether a person or a power.
anticlimax – A gradual or sudden decrease in the importance or impressiveness of what is said.
anticyclone – An atmospheric condition of high central pressure, with currents flowing outward.
antidote – Anything that will counteract or remove the effects of poison, disease, or the like.
antilogy – Inconsistency or contradiction in terms or ideas.
antipathize – To show or feel a feeling of antagonism, aversion, or dislike.
antiphon – A response or alteration of responses, generally musical.
antiphony – An anthem or other composition sung responsively.
antipodes – A place or region on the opposite side of the earth.
antiquary – One who collects and examines old things, as coins, books, medals, weapons, etc.
antiquate – To make old or out of date.
antique – Pertaining to ancient times.
antiseptic – Anything that destroys or restrains the growth of putrefactive micro- organisms.
antislavery – Opposed to human slavery.
antispasmodic – Tending to prevent or relieve non-inflammatory spasmodic affections.
antistrophe – The inversion of terms in successive classes, as in “the home of joy” and “the joy of home”.
antitoxin – A substance which neutralizes the poisonous products of micro-organisms.
antonym – A word directly opposed to another in meaning.
anxious – Distressed in mind respecting some uncertain matter.
apathy – Insensibility to emotion or passionate feeling.
aperture – Hole.
apex – The highest point, as of a mountain.
aphorism – Proverb.
apiary – A place where bees are kept.
apogee – The climax.
apology – A disclaimer of intentional error or offense.
apostasy – A total departure from one’s faith or religion.
apostate – False.
apostle – Any messenger commissioned by or as by divine authority.
apothecary – One who keeps drugs for sale and puts up prescriptions.
apotheosis – Deification.
appall – To fill with dismay or horror.
apparent – Easily understood.
apparition – Ghost.
appease – To soothe by quieting anger or indignation.
appellate – Capable of being appealed to.
appellation – The name or title by which a particular person, class, or thing is called.
append – To add or attach, as something accessory, subordinate, or supplementary.
appertain – To belong, as by right, fitness, association, classification, possession, or natural relation.
apposite – Appropriate.
apposition – The act of placing side by side, together, or in contact.
appraise – To estimate the money value of.
appreciable – Capable of being discerned by the senses or intellect.
apprehend – To make a prisoner of (a person) in the name of the law.
apprehensible – Capable of being conceived.
approbation – Sanction.
appropriate – Suitable for the purpose and circumstances.
aqueduct – A water-conduit, particularly one for supplying a community from a distance.
aqueous – Of, pertaining to, or containing water.
arbiter – One chosen or appointed, by mutual consent of parties in dispute, to decide matters.
arbitrary – Fixed or done capriciously.
arbitrate – To act or give judgment as umpire.
arbor – A tree.
arboreal – Of or pertaining to a tree or trees.
arborescent – Having the nature of a tree.
arboretum – A botanical garden or place devoted to the cultivation of trees or shrubs.
arboriculture – The cultivation of trees or shrubs.
arcade – A vaulted passageway or street; a roofed passageway having shops, etc., opening from it.
archaic – Antiquated
archaism – Obsolescence.
archangel – An angel of high rank.
archbishop – The chief of the bishops of an ecclesiastical province in the Greek, Roman, and Anglican church.
archdeacon – A high official administrator of the affairs of a diocese.
archaeology – The branch of anthropology concerned with the systematic investigation of the relics of man.
archetype – A prototype.
archipelago – Any large body of water studded with islands, or the islands collectively themselves.
ardent – Burning with passion.
ardor – Intensity of passion or affection.
arid – Very dry.
aristocracy – A hereditary nobility
aristocrat – A hereditary noble or one nearly connected with nobility.
armada – A fleet of war-vessels.
armful – As much as can be held in the arm or arms.
armory – An arsenal.
aroma – An agreeable odor.
arraign – To call into court, as a person indicted for crime, and demand whether he pleads guilty or not.
arrange – To put in definite or proper order.
arrangement – The act of putting in proper order, or the state of being put in order.
arrant – Notoriously bad.
arrear – Something overdue and unpaid.
arrival – A coming to stopping-place or destination.
arrogant – Unduly or excessively proud, as of wealth, station, learning, etc.
arrogate – To take, demand, or claim, especially presumptuously or without reasons or grounds.
Artesian well – A very deep bored well. water rises due to underground pressure
artful – Characterized by craft or cunning.
Arthurian – Pertaining to King Arthur, the real or legendary hero of British poetic story.
artifice – Trickery.
artless – Ingenuous.
ascendant – Dominant.
ascension – The act of rising.
ascent – A rising, soaring, or climbing.
ascetic – Given to severe self-denial and practicing excessive abstinence and devotion.
ascribe – To assign as a quality or attribute.
asexual – Having no distinct sexual organs.
ashen – Pale.
askance – With a side or indirect glance or meaning.
asperity – Harshness or roughness of temper.
aspirant – One who seeks earnestly, as for advancement, honors, place.
aspiration – An earnest wish for that which is above one’s present reach.
aspire – To have an earnest desire, wish, or longing, as for something high and good, not yet attained.
assailant – One who attacks.
assassin – One who kills, or tries to kill, treacherously or secretly.
assassinate – To kill, as by surprise or secret assault, especially the killing of some eminent person.
assassination – Murderer, as by secret assault or treachery.
assay – The chemical analysis or testing of an alloy ore.
assent – To express agreement with a statement or matter of opinion.
assess – To determine the amount of (a tax or other sum to be paid).
assessor – An officer whose duty it is to assess taxes.
assets – pl. Property in general, regarded as applicable to the payment of debts.
assiduous – Diligent.
assignee – One who is appointed to act for another in the management of certain property and interests.
assimilate – To adapt.
assonance – Resemblance or correspondence in sound.
assonant – Having resemblance of sound.
assonate – To accord in sound, especially vowel sound.
assuage – To cause to be less harsh, violent, or severe, as excitement, appetite, pain, or disease.
astringent – Harsh in disposition or character.
astute – Keen in discernment.
atheism – The denial of the existence of God.
athirst – Wanting water.
athwart – From side to side.
atomizer – An apparatus for reducing a liquid to a fine spray, as for disinfection, inhalation, etc.
atone – To make amends for.
atonement – Amends, reparation, or expiation made from wrong or injury.
atrocious – Outrageously or wantonly wicked, criminal, vile, or cruel.
atrocity – Great cruelty or reckless wickedness.
attaché – A subordinate member of a diplomatic embassy.
attest – To certify as accurate, genuine, or true.
attorney-general – The chief law-officer of a government.
auburn – Reddish-brown, said usually of the hair.
audacious – Fearless.
audible – Loud enough to be heard.
audition – The act or sensation of hearing.
auditory – Of or pertaining to hearing or the organs or sense of hearing.
augment – To make bigger.
augur – To predict.
Augustinian – Pertaining to St. Augustine, his doctrines, or the religious orders called after him.
aura – Pervasive psychic influence supposed to emanate from persons
aural – Of or pertaining to the ear.
auricle – One of the two chambers of the heart which receives the blood from the veins.
auricular – Of or pertaining to the ear, its auricle, or the sense of hearing.
auriferous – Containing gold.
aurora – A luminous phenomenon in the upper regions of the atmosphere.
auspice – favoring, protecting, or propitious influence or guidance.
austere – Severely simple; unadorned.
autarchy – Unrestricted power.
authentic – Of undisputed origin.
authenticity – The state or quality of being genuine, or of the origin and authorship claimed.
autobiography – The story of one’s life written by himself.
autocracy – Absolute government.
autocrat – Any one who claims or wields unrestricted or undisputed authority or influence.
automaton – Any living being whose actions are or appear to be involuntary or mechanical.
autonomous – Self-governing.
autonomy – Self-government.
autopsy – The examination of a dead body by dissection to ascertain the cause of death.
autumnal – Of or pertaining to autumn.
auxiliary – One who or that which aids or helps, especially when regarded as subsidiary or accessory.
avalanche – The fall or sliding of a mass of snow or ice down a mountain-slope, often bearing with it rock.
avarice – Passion for getting and keeping riches.
aver – To assert as a fact.
averse – Reluctant.
aversion – A mental condition of fixed opposition to or dislike of some particular thing.
avert – To turn away or aside.
aviary – A spacious cage or enclosure in which live birds are kept.
avidity – Greediness.
avocation – Diversion.
avow – To declare openly.
awaken – To arouse, as emotion, interest, or the like.
awry – & – Out of the proper form, direction, or position.
aye – An expression of assent.
azalea – A flowering shrub.
azure – The color of the sky.