English words starting with A

a person or organization that obtains or buys something, especially a company.

The act of getting or obtaining something, especially knowledge, a skill, or an object.

excessively interested in acquiring money or material things.

an excessive interest in acquiring and owning things

to decide and state officially in court that somebody is not guilty of a crime

A formal legal judgment that a person is not guilty of the crime they were accused of.

A unit of land area equal to 4,840 square yards (approximately 4,047 square meters).

A unit of volume used in the United States to measure large quantities of water, equal to the volume of water required to cover one acre of surface area to a depth of one foot (approximately 43,560 cubic feet or about 1,233 cubic meters).

The area of a piece of land measured in acres.

having an unpleasantly bitter, sharp smell or taste

characterized by bitterness, sharpness, or harshness of speech, manner, or feeling.

Bitter and sharp animosity, especially in speech, tone, or feeling.

a performer who entertains people by doing difficult and skilful physical acts, such as walking on a rope high in the air or balancing on top of a large moving ball

involving or performing spectacular gymnastic feats, often involving agility, balance, and coordination.

The spectacular gymnastic feats of an acrobat.

A word formed from the initial letters of other words and pronounced as a word.

an extreme or irrational fear of heights.

A citadel or fortified part of an ancient Greek city, typically built on a hill.

from one side to the other side of something

applying to all people, things, or situations in a particular group without exception

Made of a synthetic material derived from acrylic acid.

To do something for a particular purpose or in a particular way.

A protein that forms thin filaments in muscle cells and is involved in cell movement and structure.

Temporarily doing the duties of another person

relating to or resulting from the radiation of light, especially ultraviolet light or sunlight.

the process of doing something, especially in order to achieve a particular thing

A genre of fiction, especially in film, television, and video games, that combines elements of action and adventure, typically involving a protagonist facing physical challenges, exploration, and a quest narrative.

A film genre characterized by fast-paced plots, physical stunts, chases, fights, and explosions, where the protagonist must overcome a series of challenges.

Focusing on or emphasizing practical activity and results.

Full of exciting events or activity

Providing grounds for legal action or a lawsuit.

To make something start working or cause a process to begin.

(of a substance) made reactive or more reactive.

making something active or operative

the action or process of making something active or operative.

A substance or agent that causes something to become active or effective.

Engaged in action or activity; moving or capable of moving about.

(of a member of the military) currently serving in a full-time capacity

A type of flat-panel display technology, used in modern laptop and tablet screens, in which each pixel is controlled by its own dedicated transistor, allowing for faster response times and higher image quality than passive-matrix displays.

in a way that involves action or participation; not passively

The policy or action of using vigorous campaigning to bring about political or social change.

A person who campaigns to bring about political or social change.

The state of being active or the condition in which things are happening or being done.

Relating to or calculated by allocating costs to specific activities within an organization.

a person whose profession is acting on the stage, in films, or on television

a woman whose job is acting in plays, films, or television programmes

Existing in fact; real.

The state of existing in reality, as opposed to being potential, possible, or imagined.

The process of making something real or concrete; the state of being realized.

To make something real or concrete; to bring something into existence or action.

Made something real or concrete; brought something into existence or effect.

used to emphasize that something is true, especially when it is surprising or contradicts a previous statement.

Relating to the work of an actuary, especially the calculation of insurance risks and premiums.

A person whose job is to calculate risk and probabilities for insurance companies and pension funds.

to cause a machine or device to start working

The action of causing a machine or device to operate.

a part of a machine or system that is responsible for moving or controlling a mechanism or the system itself.

Sharpness or keenness of thought, vision, or hearing.

the ability to make good judgments and quick decisions, typically in a particular domain such as business or politics.

A form of alternative therapy in which pressure is applied to specific points on the body, typically with the fingers, to relieve pain or treat various ailments.

A form of complementary medicine in which fine needles are inserted into the skin at specific points along what are considered to be lines of energy (meridians), used especially to relieve pain.

a person who is trained to perform acupuncture

(of a bad, difficult, or unwelcome situation or phenomenon) present or experienced to a severe or intense degree.

Relating to or specializing in the short-term medical treatment of patients with severe or urgent illnesses or injuries.

in a way that is very serious or severe

the quality of being sharp, severe, or intense.

An antiviral drug used to treat infections caused by herpes viruses, including cold sores, genital herpes, chickenpox, and shingles.

An advertisement.

Without advertisements; not containing or interrupted by ads.

Created or done for a particular purpose as necessary.

To speak or perform without preparation, especially in a play, broadcast, or speech.

To speak or perform in public without preparation, making up the words or actions as one goes along.

speaking or performing in public without preparing or rehearsing beforehand

(of a service, platform, or content) funded by the revenue from advertisements rather than by direct payment from users.

a well-known phrase expressing a general truth or piece of wisdom.

in a slow tempo

Determined not to change your mind or to be persuaded about something; refusing to be persuaded.

extremely hard and unbreakable

In a way that shows you are determined not to change your mind or be persuaded.

to change something to suit a new purpose or situation

the quality of being able to change or be changed to deal with new or different situations.

Able to change or be changed in order to deal successfully with new or different situations.

the process of changing something to suit a new situation or purpose.

Relating to or involving the process of adapting something, especially a literary or artistic work, to a new form, medium, or purpose.

Changed or modified to become suitable for a new purpose, situation, or environment.

a device for connecting pieces of equipment that cannot be connected directly

the process of changing something to fit a new situation or use

having an ability to change to suit different conditions

A technology used in telescopes and other optical systems to reduce the distorting effects of the atmosphere by rapidly adjusting a deformable mirror.

a device for connecting pieces of equipment that were not originally designed to be connected

The customary law, traditions, and social codes of conduct of a particular community or ethnic group, especially in Indonesia, Malaysia, and other parts of Southeast Asia.

To put something together with something else so as to increase the size, number, or amount.

A piece of software or hardware that can be added to a computer system to give it extra features or functions.

a piece of equipment or software that can be added to a computer or other device to give it extra features or functions

Describes something that has been included or joined to something else to increase its size, number, or importance.

an item of additional material added at the end of a book or document.

A small, venomous snake of the viper family, common in northern Europe and northern Asia.

A person who is unable to stop doing or using something, especially something harmful.

being physically or mentally dependent on a particular substance or activity, and unable to stop having or doing it without great difficulty

causing a strong and often harmful need to regularly have or do something.

The condition of being unable to stop using or doing something as a habit, especially something harmful.

causing a strong and harmful need to regularly have or do something.

The present participle or gerund of the verb 'add', meaning to join something to another so as to increase the size, number, or amount.

the process of adding two or more numbers together to find their total.

Added, extra, or more than what already exists or is expected.

used to add another piece of information or to introduce a further point or reason.

a substance added to something in small quantities to improve or preserve it

To make or become confused or muddled.

(of an egg) rotten and no longer able to develop a chick

to speak or write to someone

(of a device, location, or piece of data) able to be located or identified by an address in a computer system or network.

(of a letter, parcel, etc.) having the name and address of the person or organization it is intended for written on it

a person to whom a letter, parcel, or message is addressed.

to cite as evidence or as an example in an argument or discussion.

The movement of a limb or other part toward the midline of the body or toward another part.

a muscle that moves a part of the body toward the midline of the body or toward another part.

A sweet, cold drink made from fruit juice, sugar, and water.

A small insect of the family Adelgidae, related to aphids, that feeds on conifers and can cause significant damage.

a compound which is one of the four constituent bases of nucleic acids. a purine derivative, it is paired with thymine in double-stranded dna.

a malignant tumor formed from glandular structures in epithelial tissue.