Alphabetical word directory
English words starting with A
Showing words 2,761–2,880 of 3,162. Choose a word to read its meaning, etymology and origin.
asylum
nprotection given by a government to someone who has left their own country, usually because they were in danger for political reasons
asymmetric
adjNot having parts that correspond to each other in size, shape, or arrangement; lacking symmetry.
asymmetrical
adjHaving two sides or halves that are not the same in shape, size, or arrangement; not symmetrical.
asymmetrically
advin a way that lacks symmetry or balance; not equally or correspondingly arranged on two sides.
asymmetry
nlack of equality or equivalence between parts or aspects of something; lack of symmetry.
asymptomatic
adjshowing no symptoms of a disease or medical condition
asymptotic
adjRelating to or approaching a value or curve arbitrarily closely, as a variable or function tends to infinity or a limit.
asymptotically
advIn a way that relates to or involves an asymptote; approaching a given value or curve arbitrarily closely but never actually reaching it.
asynchronous
adjNot existing or occurring at the same time.
asynchronously
advIn 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.
asynchrony
nThe state or condition of not happening or existing at the same time or rate.
at
prepused to show an exact position or particular place
at-bat
nA 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.
at-home
adjTaking place in or suited to one's own home
at-large
adj(of an official) having a general area of responsibility rather than a specific assignment.
at-risk
adjIn a situation involving danger, harm, or loss; vulnerable to a particular negative outcome.
at-sea
adjConfused, bewildered, or not knowing what to do.
at-will
adjRelating 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.
atavism
nThe reappearance of a characteristic in an organism after several generations of absence, typically due to the chance recombination of genes.
atavistic
adjRelating to or characterized by a return to a very primitive or ancient type of behavior, belief, or style.
ataxia
nA medical condition involving a lack of muscle coordination, especially of voluntary movements.
atelier
na workshop or studio, especially one used by an artist or designer.
atemporal
adjnot existing within or having any relationship with time; timeless.
atheism
nthe belief that there is no god or gods
atheist
nA person who does not believe in the existence of a god or gods.
atheistic
adjBelieving or characterized by the belief that there is no god or gods.
athenian
adjRelating to the ancient Greek city of Athens, its people, or its culture.
atherosclerosis
nA disease of the arteries characterized by the deposition of fatty material on their inner walls, causing them to harden and narrow.
atherosclerotic
adjRelating 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.
athlete
nA person who is proficient in sports and other forms of physical exercise.
athletic
adjphysically strong, fit, and active; relating to athletes or athletics
athletic-looking
adjHaving a physical appearance that suggests strength, fitness, and muscular development.
athletic-shoe
nA type of shoe designed for sports or other forms of physical exercise, typically with a flexible sole and supportive upper.
athletically
advin a way that is physically strong, active, and fit
athleticism
nthe physical qualities that are characteristic of athletes, such as strength, fitness, and agility.
athletics
nPhysical sports and games of any kind, especially those that involve running, jumping, and throwing.
atlantean
adjRelating to the legendary island or civilization of Atlantis.
atlas
na book of maps or charts
atlatl
nA 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.
ATM
nA machine, often in a wall outside a bank, from which you can take money out of your bank account using a special card.
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).
atmosphere
nthe layer of gases that surrounds a planet, especially the Earth
atmospheric
adjRelating to the atmosphere of the Earth or another planet.
atmospherics
nDisturbances in radio reception caused by electrical activity in the atmosphere, such as lightning.
atoll
na ring-shaped coral reef or string of islands surrounding a lagoon.
atom
nThe smallest particle of a chemical element that can exist.
atomic
adjRelating to atoms or an atom.
atomic-scale
adjRelating to or occurring at the scale of individual atoms or molecules; extremely small.
atomically
advIn a manner relating to atoms or atomic energy.
atomism
nA theory that physical reality is composed of simple, indivisible, and indestructible particles called atoms.
atomistic
adjRelating to the theory that society, knowledge, or a complex whole is best understood by analyzing its basic, individual components.
atomization
nThe process of making something into separate, very small parts or individual units.
atomize
vTo separate something into very small particles or parts.
atomized
adjreduced to tiny particles or a fine spray
atomizer
nA device that turns a liquid into a very fine spray or mist.
atonal
adjNot written in any key or mode; lacking a tonal center or key.
atonality
nThe absence of a key or tonal center in a musical composition.
atone
vTo do something to show you are sorry for having done something wrong.
atonement
nThe act of doing something to show you are sorry for having done something wrong.
atop
prepon the top of
atopic
adjRelating to or caused by a hereditary predisposition to developing allergic reactions, such as asthma or eczema.
atorvastatin
nA drug of the statin class used to lower cholesterol levels in the blood and reduce the risk of cardiovascular disease.
atraumatic
adj(of a medical or surgical procedure) designed to minimize tissue damage or psychological distress.
atrazine
nA synthetic herbicide used to control broadleaf weeds and grasses, especially in crops such as corn and sugarcane.
atresia
na congenital condition where a bodily passage or opening is abnormally closed or absent.
atrial
adjRelating to or affecting the atrium of the heart.
atrioventricular
adjRelating to or involving both the atria and the ventricles of the heart.
atrium
na large open central area in a modern building, often with a glass roof.
atrocious
adjextremely wicked, brutal, or cruel.
atrociously
advIn an extremely wicked, cruel, or shocking manner.
atrocity
nan extremely cruel, violent, or shocking act.
atrophic
adjrelating to or characterized by atrophy; undergoing or resulting from a wasting away of body tissues or organs.
atrophied
adjHaving wasted away or decreased in size and strength, especially due to disease or lack of use.
atrophy
nThe process of wasting away or becoming weaker, especially due to the degeneration of cells, tissues, or organs
atropine
na poisonous compound found in deadly nightshade and related plants, used in medicine to dilate the pupils and to treat certain heart and stomach conditions.
attaboy
interjAn expression of encouragement, approval, or admiration, typically directed at a boy, man, or male animal.
attach
vTo fasten or join one thing to another.
attache
nA person on the diplomatic staff of an ambassador or embassy, having a specialized area of responsibility.
attached
adjjoined or fastened to something
attachment
nA feeling of love or strong connection to someone or something.
attack
vTo try to hurt, defeat, or criticize someone or something using force or words.
attacked
vto act violently against someone or something in order to harm them.
attacker
na person or group that uses violence to try to hurt or kill someone
attacking
adj(of a player or their style of play) making forceful attempts to score or gain an advantage
attain
vto succeed in getting something, usually after a lot of effort
attainable
adjable to be achieved or reached, especially with effort.
attainder
nthe extinction of a person's civil rights resulting from a sentence of death or outlawry on conviction for treason or a felony.
attained
vsucceeded in achieving something that one has worked for or tried to get.
attainment
nThe action or fact of achieving a goal toward which one has worked.
attar
nA fragrant essential oil, typically made from rose petals.
attempt
vTo try to do something, especially something difficult.
attempted
adjHaving been tried or undertaken, but not necessarily completed or successful.
attend
vto be present at an event, meeting, or function
attendance
nthe act of being present at a place or event
attendant
na person whose job is to serve or help people in a public place
attended
vPast tense and past participle of attend.
attendee
na person who attends a meeting, conference, or other event
attender
nA person who attends a meeting, class, event, etc.
attending
adj(of a physician) having primary responsibility for a patient or being actively involved in patient care, especially in a hospital.
attention
nThe act or state of applying your mind to something or someone, or noticing them.
attention-deficit
nA behavioral syndrome, especially in children, characterized by a persistent pattern of inattention and/or hyperactivity-impulsivity that interferes with functioning or development.
attention-getting
adjDesigned to attract notice or interest; conspicuous or striking.
attention-grabbing
adjVery noticeable and designed to attract a lot of attention.
attentional
adjRelating to or involving attention
attentive
adjpaying close attention to something
attentively
advIn a way that shows you are listening to or looking at someone or something carefully and with interest.
attentiveness
nthe quality of paying close attention to something or someone
attenuate
vto make something weaker or less effective
attenuated
adjmade thin or weaker in force, effect, or value.
attenuation
nthe action or process of making something weaker or less effective.
attenuator
na device or component that reduces the strength or amplitude of a signal without significantly distorting its waveform.
attest
vTo show or prove that something exists or is true.
attestation
nA formal statement or piece of evidence that something is true or genuine.
attic
na space or room just below the roof of a building, often used for storage or as an extra room.
attire
nClothes, especially of a particular or formal type
attitude
nthe way that you think and feel about someone or something
attitude-behavior
[noun phrase]The relationship or potential discrepancy between a person's internal feelings or beliefs and their outward actions.
attitudinal
adjrelating to or expressing a person's opinions, feelings, or general approach to something.
attorney
nA person, typically a lawyer, who is legally appointed to act on behalf of another person in business or legal matters.
attorney-client
nThe legal and confidential relationship between a lawyer and the person they are representing.