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English Dictionary — Definitions & Meanings

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“A” Words

associative
adj
Connected with, or formed through, the linking of ideas or things together.
assoil
verb
(archaic) To forgive someone and clear them of guilt or wrongdoing.
assoilment
noun
The act of making something dirty; defilement.
assonance
noun
The repeating of similar vowel sounds in nearby words, often used in poetry.
assort
verb
To arrange things into groups according to their type.
assorted
adj
Made up of various different kinds mixed together.
assortment
noun
A varied collection of related items.
asspussy
noun
(vulgar) The anus, when used as the opening for anal sex.
assuage
verb
To make an unpleasant feeling, such as fear, guilt, or grief, less intense.
assuagement
noun
The act of calming or easing something, such as pain or distress.
assume
verb
To accept something as true without proof.
assumed
adj
Taken as true or accepted without being proven.
assuming
adj
Arrogant or overly confident; taking too much for granted.
assumption
noun
Something accepted as true without proof, or the act of accepting it as true.
assumptive
adj
Accepted as true without any real proof.
assurance
noun
A confident promise or statement meant to remove doubt.
assure
verb
To tell someone something confidently in order to remove their doubt or worry.
assured
adjective
Confident and self-possessed, without any nervousness or doubt.
assuredly
adverb
Without doubt; certainly.
assuredness
noun
A feeling of confidence and certainty.
assuring
adjective
Giving confidence or comfort; reassuring.
asswipe
noun
A vulgar insult for someone considered annoying, worthless, or contemptible.
assy
adj
(informal) Behaving like a stupid or unpleasant person.
assyth
noun
Payment made to make up for harm or an insult.
Ast
name
A short surname of German origin, also used as an abbreviation in other contexts.
Asta
name
A feminine given name of Scandinavian origin, a short form of names like Astrid.
Astaire
name
A surname best known through American dancer and actor Fred Astaire.
astand
verb
To get up or stand up.
astatine
noun
A strongly radioactive halogen element, symbol At, atomic number 85.
aster
noun
A garden plant with daisy-like flowers, typically purple, pink, or white, that bloom in late summer and autumn.
asterisk
noun
The star-shaped symbol (*) used in writing to mark a footnote, show an omission, or flag something as an exception.
asterism
noun
A small, recognisable group of stars that is not an official constellation.
Asterix
name
The title character of a French comic book series about an Ancient Gaulish warrior, created by René Goscinny and Albert Uderzo.
astern
adverb
Behind a ship or boat, or moving backward.
asteroid
noun
A rocky body, smaller than a planet, that orbits the sun, mostly found in the belt between Mars and Jupiter.
asthma
noun
A chronic condition in which the airways narrow and swell, causing wheezing, coughing, and shortness of breath, often triggered by allergens, cold air, or exercise.
asthmatic
adjective
Relating to or affected by asthma.
astigmatism
noun
In optics, astigmatism is a defect of a lens where light rays from a single point fail to meet at one focal point, so the resulting image is blurred.
Aston
noun
Informal shorthand for a car made by Aston Martin.
astonish
verb
To surprise someone so much that they are left amazed.
astonished
adjective
Filled with great surprise; amazed.
astonishing
adjective
So surprising or impressive that it causes amazement.
astonishingly
adverb
In a way that causes great surprise or amazement.
astonishment
noun
A feeling of great surprise or amazement.
Astor
name
An English surname, made famous by the wealthy Astor family of New York.
Astoria
name
A place name used for several towns in the United States and a neighbourhood of Queens, New York City, most named after John Jacob Astor.
astound
verb
To shock or amaze someone so much that they are left almost speechless.
astounded
adjective
Overwhelmed with shock or amazement.
astounding
adjective
So impressive or surprising that it leaves people stunned.
astraddle
adv
With one leg on each side of something.
astragal
noun
Synonym of anklebone: the bone forming the ball of the ankle joint.
astragalus
noun
Another word for anklebone.
astral
adjective
Relating to or resembling stars.
astray
adverb
Away from the correct path or intended route.
Astrid
name
A feminine given name of Germanic origin, popular in Scandinavia.
astride
adverb
With one leg on each side of something.
astringe
verb
To squeeze or tighten something.
astringency
noun
The state or property of being astringent.
astringent
noun
A liquid or substance applied to the skin to make the tissue contract, reducing oil and tightening pores.
Astro
noun
Informal name for a player on the Houston Astros baseball team.
astrolabe
noun
An early instrument used by astronomers and navigators to measure the height of the Sun and stars above the horizon.
astrologer
noun
A person who studies or practices astrology, interpreting the positions of stars and planets to predict events or personality traits.
astrological
adjective
Relating to astrology.
astrologist
noun
A person who studies or practises astrology.
astrology
noun
The belief system that studies the positions of stars and planets in order to predict human affairs or personality traits.
astrometry
noun
The area of astronomy concerned with measuring the positions and movements of stars and other objects in space.
astronaut
noun
A person trained to travel and work in a spacecraft beyond Earth’s atmosphere.
astronautics
noun
The practice of travelling and finding your way through space.
astronomer
noun
A scientist who studies stars, planets, and the wider universe.
astronomic
adj
Relating to astronomy.
astronomical
adjective
Relating to astronomy or to space and celestial objects.
astronomically
adv
In a way that relates to astronomy.
astronomy
noun
The scientific study of stars, planets, and the wider universe, including their positions, motion, and physical properties.
astrophysicist
noun
A scientist who studies the physical properties and behavior of stars, planets, and other celestial bodies.
astrophysics
noun
The branch of science that applies the laws of physics to study stars, planets, and other objects in space.
astute
adjective
Quick to notice things and judge situations accurately; sharp-witted.
astuteness
noun
The quality of being clever and quick to notice things.
Asu
name
A name used for either of two unrelated African languages: a Nupoid language of Nigeria and a Bantu language (also called Pare) of Tanzania.
Asuka
name
A feminine Japanese given name.
asunder
adverb
Torn or broken into separate pieces, especially violently.
Aswell
name
An English surname, a variant of Haswell.
asylum
noun
Protection given by a country to someone fleeing danger or persecution in their own country.
asymmetric
adj
Not the same on both sides; lacking symmetry.
asymmetrical
adjective
Not identical or balanced on both sides; lacking symmetry.
asymmetry
noun
A lack of balance or matching proportion between the parts of something.
asymptomatic
adjective
Having a disease, infection or condition without showing any of its noticeable signs or feeling unwell.
asymptote
noun
A straight line that a curve gets closer and closer to but never actually touches as it extends towards infinity.
asynchronicity
noun
The fact of not happening at the same time or rate.
asynchronous
adjective
Not happening or done at the same time, so that the people involved take part whenever it suits them rather than together in real time.
asynergy
noun
(medicine) Poor or missing coordination between muscles or body parts, making movement slow or difficult.
asynonymous
adj
Another word for nonsynonymous.
asystole
noun
A medical condition in which the heart stops contracting entirely, showing no electrical activity.
at
preposition
Indicating a specific location or place.
ATA
noun
A computer interface standard (Advanced Technology Attachment) used to connect hard drives to a computer.
ataman
noun
A title given to various Cossack and haidamak leaders, and also to the head of a fishing group or a gang of robbers.
ataraxis
noun
A calm state, free from stress or worry.
atari
noun
In the board game Go, a position where a stone or group of stones is one move away from being captured.
atavism
noun
The sudden return of a trait from a distant ancestor after it had disappeared for generations.
atavist
noun
A trait that reappears in a family line after skipping several generations.
ataxia
noun
A lack of coordination in voluntary movements, which can look like clumsiness, inaccuracy or unsteadiness.
atb
abbreviation
All the best; a friendly sign-off used at the end of a text, email or message, wishing the reader well.
ate
verb
The past tense of "eat".
atelier
noun
A workshop or studio, especially one used by an artist, designer, or fashion house.
atemporal
adj
Existing outside of time, so that it never changes or ages.
ATF
phrase
An abbreviation meaning "as trustee for," used in legal and financial documents to show that an account or asset is held by one person on behalf of another.
athanasy
noun
The state of living forever, with no death.
atheism
noun
The belief that no gods or deities exist, or the absence of belief in any deity.
atheist
noun
A person who does not believe that any gods or deities exist.
atheistic
adj
Connected with atheists or with not believing in God.
atheistical
adj
Connected with atheism; not believing in God.
atheisticalness
noun
The fact or quality of not believing in God.
Athelstan
name
A masculine given name and surname, historically borne by Æthelstan, the first king of a unified England.
Athena
noun
Slang for a woman regarded as supporting or upholding patriarchal norms rather than opposing them.
Athenian
noun
A person from Athens, Greece.
Athens
name
The capital city of Greece, and by extension its national government; also used as a place name for several towns in the United States.
atheophobia
noun
A strong dislike or fear of people who do not believe in God.
Atherton
name
An English habitational surname, and a place name for towns in England, Australia, and the United States.
athina
name
Synonym of Athens (“the capital city of Greece”).
athirst
adj
Very keen to have or get something.
athlete
noun
A person who competes in sports, especially one who trains and performs at a high level.
athletic
adjective
Relating to athletes or physical sports.
athletics
noun
Track and field sports such as running, jumping, and throwing.
Athos
name
A peninsula in Greece, home to Mount Athos; in Greek mythology, one of the Gigantes.
athwart
adv
Lying or moving in a slanting line, from one side to the other.
ativan
name
A brand name for the drug lorazepam.
Atlanta
name
The capital and largest city of the U.S. state of Georgia.
atlantean
noun
A person said to live on the legendary island of Atlantis.
Atlantic
adj
Relating to the Atlantic Ocean or to the countries and coastlines that border it.
Atlantis
name
A legendary island or continent said to have sunk beneath the Atlantic Ocean.
atlas
noun
A book of maps, often with extra tables, charts, or explanatory text.
ATM
noun
A machine, usually built into a wall or standing in a public place, that lets you withdraw cash and carry out simple banking with a card and a PIN.
atmosphere
noun
The layer of gases surrounding a planet, especially Earth.
atmospheric
adjective
Relating to or coming from the atmosphere.
atmospherics
noun
Crackling noise on a radio caused by electrical activity in the air, such as lightning.
atoll
noun
A ring-shaped coral island or string of islands surrounding a central lagoon.
atom
noun
The smallest unit of a chemical element that retains its properties, made up of a nucleus and surrounding electrons.
atomic
adjective
Relating to atoms.
atomic mass
noun
The mass of a single atom, counted mainly from its protons and neutrons and usually given in atomic mass units, where one unit is a twelfth of the mass of a carbon-12 atom.
atomic mass unit
noun
A standard unit for stating the masses of atoms and molecules, defined as exactly one twelfth of the mass of a single carbon-12 atom, which is about 1.66 x 10^-27 kilograms. It is symbolised u or amu and is also called the dalton.
atomic number
noun
The number of protons in the nucleus of an atom, which determines what element the atom is and where it sits on the periodic table.
atomize
verb
To break something down into its smallest particles.
atomizer
noun
A device that turns a liquid into a fine mist, used for things like perfume or medicine.
aton
noun
An alternative letter-case form of AtoN.
atonal
adj
Written or played with no central musical key.
atone
verb
To make amends for a wrongdoing or mistake.
atonement
noun
The act of making amends for wrongdoing.
atop
preposition
On top of.
ATP
noun
A molecule that stores and carries chemical energy inside living cells, releasing it for muscle contraction, nerve signals and other processes when one of its phosphate groups is broken off.
atrabiliary
adj
Connected with black bile, one of the old bodily humours.
atrabilious
adj
Containing too much black bile, according to old medical belief.