Alphabetical word directory

English words starting with A

Showing words 2,7612,880 of 3,162. Choose a word to read its meaning, etymology and origin.

asylum

n

protection given by a government to someone who has left their own country, usually because they were in danger for political reasons

[əˈsaɪ.ləm]

asymmetric

adj

Not having parts that correspond to each other in size, shape, or arrangement; lacking symmetry.

[ˌeɪsɪˈmɛtrɪk]

asymmetrical

adj

Having two sides or halves that are not the same in shape, size, or arrangement; not symmetrical.

[ˌeɪsɪˈmɛtrɪkəl]

asymmetrically

adv

in a way that lacks symmetry or balance; not equally or correspondingly arranged on two sides.

[ˌeɪsɪˈmɛtrɪkli]

asymmetry

n

lack of equality or equivalence between parts or aspects of something; lack of symmetry.

[eɪˈsɪmətri]

asymptomatic

adj

showing no symptoms of a disease or medical condition

[ˌeɪsɪmptəˈmætɪk]

asymptotic

adj

Relating to or approaching a value or curve arbitrarily closely, as a variable or function tends to infinity or a limit.

[ˌæsɪmpˈtɑːtɪk]

asymptotically

adv

In a way that relates to or involves an asymptote; approaching a given value or curve arbitrarily closely but never actually reaching it.

[ˌæsɪmpˈtɑːtɪkli]

asynchronous

adj

Not existing or occurring at the same time.

[eɪˈsɪŋkrənəs]

asynchronously

adv

In a way that does not occur at the same time or speed, or in a way where operations are not coordinated by a single timing signal.

[eɪˈsɪŋkrənəsli]

asynchrony

n

The state or condition of not happening or existing at the same time or rate.

[eɪˈsɪŋkrəni]

at

prep

used to show an exact position or particular place

[ət]

at-bat

n

A turn at batting for a baseball player, officially charged unless the batter walks, is hit by a pitch, makes a sacrifice, or is interfered with by the catcher.

[ət ˈbæt]

at-home

adj

Taking place in or suited to one's own home

[ˌætˈhoʊm]

at-large

adj

(of an official) having a general area of responsibility rather than a specific assignment.

[ət ˈlɑːrdʒ]

at-risk

adj

In a situation involving danger, harm, or loss; vulnerable to a particular negative outcome.

[ət ˈrɪsk]

at-sea

adj

Confused, bewildered, or not knowing what to do.

[ət ˈsiː]

at-will

adj

Relating to or being a situation where an employer can dismiss an employee or an employee can leave a job at any time, for any reason not prohibited by law, and without notice.

[ət ˈwɪl]

atavism

n

The reappearance of a characteristic in an organism after several generations of absence, typically due to the chance recombination of genes.

[ˈætəvɪzəm]

atavistic

adj

Relating to or characterized by a return to a very primitive or ancient type of behavior, belief, or style.

[ˌætəˈvɪstɪk]

ataxia

n

A medical condition involving a lack of muscle coordination, especially of voluntary movements.

[əˈtæksiə]

atelier

n

a workshop or studio, especially one used by an artist or designer.

[ˌætəlˈjeɪ]

atemporal

adj

not existing within or having any relationship with time; timeless.

[ˌeɪˈtem.pɚ.əl]

atheism

n

the belief that there is no god or gods

[ˈeɪθiɪzəm]

atheist

n

A person who does not believe in the existence of a god or gods.

[ˈeɪθiɪst]

atheistic

adj

Believing or characterized by the belief that there is no god or gods.

[ˌeɪθiˈɪstɪk]

athenian

adj

Relating to the ancient Greek city of Athens, its people, or its culture.

[əˈθiːniən]

atherosclerosis

n

A disease of the arteries characterized by the deposition of fatty material on their inner walls, causing them to harden and narrow.

[ˌæθəˌroʊskləˈroʊsɪs]

atherosclerotic

adj

Relating to or affected by atherosclerosis, a condition in which fatty deposits build up on the inner walls of arteries, causing them to harden and narrow.

[ˌæθəroʊskləˈrɛtɪk]

athlete

n

A person who is proficient in sports and other forms of physical exercise.

[ˈaθliːt]

athletic

adj

physically strong, fit, and active; relating to athletes or athletics

[əθˈlɛtɪk]

athletic-looking

adj

Having a physical appearance that suggests strength, fitness, and muscular development.

[æθˈlɛtɪk ˈlʊkɪŋ]

athletic-shoe

n

A type of shoe designed for sports or other forms of physical exercise, typically with a flexible sole and supportive upper.

[æθˈlɛtɪk ʃuː]

athletically

adv

in a way that is physically strong, active, and fit

[æθˈletɪkli]

athleticism

n

the physical qualities that are characteristic of athletes, such as strength, fitness, and agility.

[aθˈlet̬ɪsɪzəm]

athletics

n

Physical sports and games of any kind, especially those that involve running, jumping, and throwing.

[æθˈlɛtɪks]

atlantean

adj

Relating to the legendary island or civilization of Atlantis.

[ətˈlæntiən]

atlas

n

a book of maps or charts

[ˈætləs]

atlatl

n

A device used to throw a spear or dart, consisting of a short rod with a hook or socket at one end that holds the weapon's butt, thereby increasing leverage and throwing speed.

[ˈɑːt.lɑːt.əl]

ATM

n

A machine, often in a wall outside a bank, from which you can take money out of your bank account using a special card.

[ˌeɪ.tiːˈem]

atman

n

(in hindu philosophy) the real self of the individual, distinct from the ego, mind, and physical body; the soul or essence of a person, regarded as eternal and identical with the universal soul or ultimate reality (brahman).

[ˈɑːtmən]

atmosphere

n

the layer of gases that surrounds a planet, especially the Earth

[ˈætməsfɪr]

atmospheric

adj

Relating to the atmosphere of the Earth or another planet.

[ˌætməsˈfɛrɪk]

atmospherics

n

Disturbances in radio reception caused by electrical activity in the atmosphere, such as lightning.

[ˌætməsˈfɛrɪks]

atoll

n

a ring-shaped coral reef or string of islands surrounding a lagoon.

[ˈætɔːl]

atom

n

The smallest particle of a chemical element that can exist.

[ˈætəm]

atomic

adj

Relating to atoms or an atom.

[əˈtɑːmɪk]

atomic-scale

adj

Relating to or occurring at the scale of individual atoms or molecules; extremely small.

[əˈtɑːmɪk skeɪl]

atomically

adv

In a manner relating to atoms or atomic energy.

[əˈtɑːmɪkli]

atomism

n

A theory that physical reality is composed of simple, indivisible, and indestructible particles called atoms.

[ˈætəmɪzəm]

atomistic

adj

Relating to the theory that society, knowledge, or a complex whole is best understood by analyzing its basic, individual components.

[ˌætəˈmɪstɪk]

atomization

n

The process of making something into separate, very small parts or individual units.

[ˌæt̬.ə.məˈzeɪ.ʃən]

atomize

v

To separate something into very small particles or parts.

[ˈæt̬.ə.maɪz]

atomized

adj

reduced to tiny particles or a fine spray

[ˈæt̬.ə.maɪzd]

atomizer

n

A device that turns a liquid into a very fine spray or mist.

[ˈætəmaɪzər]

atonal

adj

Not written in any key or mode; lacking a tonal center or key.

[eɪˈtoʊnəl]

atonality

n

The absence of a key or tonal center in a musical composition.

[ˌeɪ.toʊˈnæl.ə.ti]

atone

v

To do something to show you are sorry for having done something wrong.

[əˈtoʊn]

atonement

n

The act of doing something to show you are sorry for having done something wrong.

[əˈtoʊnmənt]

atop

prep

on the top of

[əˈtɑːp]

atopic

adj

Relating to or caused by a hereditary predisposition to developing allergic reactions, such as asthma or eczema.

[eɪˈtɑːpɪk]

atorvastatin

n

A drug of the statin class used to lower cholesterol levels in the blood and reduce the risk of cardiovascular disease.

[əˌtɔːrvəˈstætən]

atraumatic

adj

(of a medical or surgical procedure) designed to minimize tissue damage or psychological distress.

[ˌeɪtrəˈmætɪk]

atrazine

n

A synthetic herbicide used to control broadleaf weeds and grasses, especially in crops such as corn and sugarcane.

[ˈætrəˌziːn]

atresia

n

a congenital condition where a bodily passage or opening is abnormally closed or absent.

[əˈtriːʒə]

atrial

adj

Relating to or affecting the atrium of the heart.

[ˈeɪtriəl]

atrioventricular

adj

Relating to or involving both the atria and the ventricles of the heart.

[ˌeɪtrioʊˌvɛnˈtrɪkjələr]

atrium

n

a large open central area in a modern building, often with a glass roof.

[ˈeɪ.tri.əm]

atrocious

adj

extremely wicked, brutal, or cruel.

[əˈtroʊʃəs]

atrociously

adv

In an extremely wicked, cruel, or shocking manner.

[əˈtroʊʃəsli]

atrocity

n

an extremely cruel, violent, or shocking act.

[əˈtrɑːsəti]

atrophic

adj

relating to or characterized by atrophy; undergoing or resulting from a wasting away of body tissues or organs.

[əˈtrɑːfɪk]

atrophied

adj

Having wasted away or decreased in size and strength, especially due to disease or lack of use.

[ˈætrəfid]

atrophy

n

The process of wasting away or becoming weaker, especially due to the degeneration of cells, tissues, or organs

[ˈætrəfi]

atropine

n

a poisonous compound found in deadly nightshade and related plants, used in medicine to dilate the pupils and to treat certain heart and stomach conditions.

[ˈætrəpiːn]

attaboy

interj

An expression of encouragement, approval, or admiration, typically directed at a boy, man, or male animal.

[ˈæt̬əˌbɔɪ]

attach

v

To fasten or join one thing to another.

[əˈtætʃ]

attache

n

A person on the diplomatic staff of an ambassador or embassy, having a specialized area of responsibility.

[ˌætəˈʃeɪ]

attached

adj

joined or fastened to something

[əˈtætʃt]

attachment

n

A feeling of love or strong connection to someone or something.

[əˈtætʃmənt]

attack

v

To try to hurt, defeat, or criticize someone or something using force or words.

[əˈtæk]

attacked

v

to act violently against someone or something in order to harm them.

[əˈtækt]

attacker

n

a person or group that uses violence to try to hurt or kill someone

[əˈtækər]

attacking

adj

(of a player or their style of play) making forceful attempts to score or gain an advantage

[əˈtækɪŋ]

attain

v

to succeed in getting something, usually after a lot of effort

[əˈteɪn]

attainable

adj

able to be achieved or reached, especially with effort.

[əˈteɪnəbl̩]

attainder

n

the extinction of a person's civil rights resulting from a sentence of death or outlawry on conviction for treason or a felony.

[əˈteɪndər]

attained

v

succeeded in achieving something that one has worked for or tried to get.

[əˈteɪnd]

attainment

n

The action or fact of achieving a goal toward which one has worked.

[əˈteɪnmənt]

attar

n

A fragrant essential oil, typically made from rose petals.

[ˈætər]

attempt

v

To try to do something, especially something difficult.

[əˈtɛmpt]

attempted

adj

Having been tried or undertaken, but not necessarily completed or successful.

[əˈtɛmptɪd]

attend

v

to be present at an event, meeting, or function

[əˈtɛnd]

attendance

n

the act of being present at a place or event

[əˈtɛndəns]

attendant

n

a person whose job is to serve or help people in a public place

[əˈtendənt]

attended

v

Past tense and past participle of attend.

[əˈtɛndɪd]

attendee

n

a person who attends a meeting, conference, or other event

[ˌæt.enˈdiː]

attender

n

A person who attends a meeting, class, event, etc.

[əˈtɛndər]

attending

adj

(of a physician) having primary responsibility for a patient or being actively involved in patient care, especially in a hospital.

[əˈtɛndɪŋ]

attention

n

The act or state of applying your mind to something or someone, or noticing them.

[əˈtenʃn]

attention-deficit

n

A behavioral syndrome, especially in children, characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.

[əˈtɛnʃ(ə)n ˈdɛfɪsɪt]

attention-getting

adj

Designed to attract notice or interest; conspicuous or striking.

[əˈten.ʃən ˌɡet̬.ɪŋ]

attention-grabbing

adj

Very noticeable and designed to attract a lot of attention.

[əˈten.ʃən ˌɡræb.ɪŋ]

attentional

adj

Relating to or involving attention

[əˈten.ʃən.əl]

attentive

adj

paying close attention to something

[əˈtentɪv]

attentively

adv

In a way that shows you are listening to or looking at someone or something carefully and with interest.

[əˈtentɪvli]

attentiveness

n

the quality of paying close attention to something or someone

[əˈtentɪvnəs]

attenuate

v

to make something weaker or less effective

[əˈten.ju.eɪt]

attenuated

adj

made thin or weaker in force, effect, or value.

[əˈten.ju.eɪ.t̬ɪd]

attenuation

n

the action or process of making something weaker or less effective.

[əˌten.juˈeɪ.ʃən]

attenuator

n

a device or component that reduces the strength or amplitude of a signal without significantly distorting its waveform.

[əˈten.ju.eɪ.t̬ɚ]

attest

v

To show or prove that something exists or is true.

[əˈtest]

attestation

n

A formal statement or piece of evidence that something is true or genuine.

[ˌæt̬.eˈsteɪ.ʃən]

attic

n

a space or room just below the roof of a building, often used for storage or as an extra room.

[ˈætɪk]

attire

n

Clothes, especially of a particular or formal type

[əˈtaɪər]

attitude

n

the way that you think and feel about someone or something

[ˈætɪtuːd]

attitude-behavior

[noun phrase]

The relationship or potential discrepancy between a person's internal feelings or beliefs and their outward actions.

[ˈætɪtuːd bɪˈheɪvjər]

attitudinal

adj

relating to or expressing a person's opinions, feelings, or general approach to something.

[ˌætɪˈtuːdɪnəl]

attorney

n

A person, typically a lawyer, who is legally appointed to act on behalf of another person in business or legal matters.

[əˈtɜːrni]

attorney-client

n

The legal and confidential relationship between a lawyer and the person they are representing.

[əˈtɜːrni ˈklaɪənt]
English Words Starting with A – Page 24 | OpenEtymology