Meaning: A condition marked by hyperactivity and difficulty in maintaining attention.

Part of speech: noun

Example: Attention deficit hyperactivity disorder can affect both children and adults.

Category: Medicine › Psychology

Synonyms:

• ADHD
• hyperactivity disorder

Meaning: To reduce the force, effect, or value of something.

Part of speech: verb

Example: The medication can help attenuate the symptoms of the disease.

Category: Medicine › Pharmacology

Synonyms:

• diminish
• reduce

Antonyms:

• increase
• amplify

Meaning: Reduced in force, effect, or value.

Part of speech: adjective

Example: The attenuated virus is used in vaccines.

Category: Medicine › Pharmacology

Synonyms:

• weakened
• diminished

Antonyms:

• strengthened
• intensified

Meaning: The reduction of the force, effect, or value of something.

Part of speech: noun

Example: The attenuation of the signal was noticeable.

Category: Science › Physics

Synonyms:

• reduction
• diminution

Antonyms:

• increase
• amplification

Meaning: A device that reduces the strength of a signal.

Part of speech: noun

Example: The attenuator helped improve the audio quality.

Category: Technology › Electronics

Synonyms:

• reducer
• diminisher

Meaning: A metric prefix indicating a factor of 10^-18.

Part of speech: prefix

Example: An attometer is one quintillionth of a meter.

Category: Science › Measurement

Meaning: The chief legal officer of a state or country.

Part of speech: noun

Example: The attorney general announced new legal reforms.

Category: Law › Legal Profession

Synonyms:

• chief prosecutor
• legal advisor

Meaning: A substance that attracts organisms or insects.

Part of speech: noun

Example: The attractant lured the moths to the trap.

Category: Science › Biology

Synonyms:

• lure
• bait

Meaning: Able to be assigned to a particular cause or source.

Part of speech: adjective

Example: The success is attributable to hard work.

Category: Science › Research

Synonyms:

• ascribable
• assignable

Antonyms:

• unattributable
• unassignable

Meaning: The act of assigning a quality or characteristic to someone or something.

Part of speech: noun

Example: Attribution of success to teamwork is common.

Category: Science › Psychology

Synonyms:

• assignment
• ascription

Meaning: Describing or indicating a quality or characteristic.

Part of speech: adjective

Example: Attributive adjectives modify nouns.

Category: Language › Grammar

Synonyms:

• descriptive
• qualitative

Meaning: Not typical; unusual or abnormal.

Part of speech: adjective

Example: His behavior was atypical for someone in his position.

Category: Psychology › Behavior

Synonyms:

• unusual
• abnormal

Antonyms:

• typical
• normal

Meaning: Astronomical unit, a measure of distance in space.

Part of speech: noun

Example: One AU is the average distance from the Earth to the Sun.

Category: Science › Astronomy

Synonyms:

• distance unit
• astronomical measure

Meaning: Showing a willingness to take bold risks.

Part of speech: adjective

Example: Her audacious plan surprised everyone.

Category: Business › Risk

Synonyms:

• bold
• daring

Antonyms:

• timid
• cautious

Meaning: The willingness to take bold risks.

Part of speech: noun

Example: He had the audacity to challenge the status quo.

Category: Business › Risk

Synonyms:

• boldness
• daring

Antonyms:

• timidity
• caution

Meaning: A prefix relating to sound.

Part of speech: prefix

Example: Audio-visual materials combine sound and visual elements.

Category: Technology › Sound

Meaning: Relating to a method of language teaching that emphasizes listening and speaking.

Part of speech: adjective

Example: The audio lingual method is popular in language learning.

Category: Education › Language Learning

Synonyms:

• listening-based
• oral

Meaning: A professional who specializes in diagnosing and treating hearing disorders.

Part of speech: noun

Example: The audiologist tested her hearing.

Category: Medicine › Health

Synonyms:

• hearing specialist
• hearing expert

Meaning: The study of hearing and balance.

Part of speech: noun

Example: Audiology is important for diagnosing hearing loss.

Category: Medicine › Health

Synonyms:

• hearing science
• hearing study

Meaning: The measurement of hearing ability.

Part of speech: noun

Example: Audiometry tests are used to assess hearing loss.

Category: Medicine › Health

Synonyms:

• hearing test
• hearing measurement

Meaning: Relating to both sound and visual components.

Part of speech: adjective

Example: The audio-visual presentation was engaging.

Category: Technology › Sound

Synonyms:

• multimedia
• combined

Meaning: A difficult or unpleasant task, especially one that is long overdue.

Part of speech: noun

Example: Cleaning the Augean stables of the office was a huge job.

Category: Arts › Literature

Synonyms:

• mess
• chaos

Meaning: Anything at all; any part.

Part of speech: pronoun

Example: If aught is wrong, please let me know.

Category: Literature

Synonyms:

• anything
• any

Meaning: Serving to increase or make larger.

Part of speech: adjective

Example: The augmentative form of the word is used for emphasis.

Category: Language › Grammar

Synonyms:

• increasing
• enhancing

Meaning: To predict or foretell an event.

Part of speech: verb

Example: The dark clouds augur a storm.

Category: Literature

Synonyms:

• predict
• foretell

Meaning: A sign of what will happen in the future; an omen.

Part of speech: noun

Example: The augury of the birds was taken seriously by the ancient Romans.

Category: Literature

Synonyms:

• omen
• sign

Meaning: Respected and impressive.

Part of speech: adjective

Example: He was invited to speak at the august gathering.

Category: Arts › Literature

Synonyms:

• dignified
• imposing

Meaning: Respected and impressive.

Part of speech: adjective

Example: He was invited to speak at the august gathering.

Category: Arts › Literature

Synonyms:

• dignified
• imposing

Meaning: Relating to the reign of Augustus or to a period of great achievement.

Part of speech: adjective

Example: The Augustan age was marked by literary excellence.

Category: History

Synonyms:

• classical
• golden

Meaning: A type of seabird known for its diving ability.

Part of speech: noun

Example: The auk is often found in cold northern waters.

Category: Nature › Birds

Synonyms:

• bird
• seabird

Meaning: A Scottish song celebrating friendship and memories.

Part of speech: noun

Example: We sang 'Auld Lang Syne' at the New Year's party.

Category: Arts › Music

Synonyms:

• song
• melody

Meaning: A person or thing that is easy to criticize or attack.

Part of speech: noun

Example: He set up Aunt Sally to make his argument easier.

Category: Politics

Synonyms:

• scapegoat
• target

Meaning: Characterized by a grand or elaborate style.

Part of speech: adjective

Example: The poet's aureate language impressed the audience.

Category: Arts › Literature

Synonyms:

• grand
• ornate

Meaning: A circle of light or brightness surrounding a person or thing.

Part of speech: noun

Example: The saint was depicted with an aureole in the painting.

Category: Arts › Visual Arts

Synonyms:

• halo
• glow

Meaning: An extinct species of large wild cattle.

Part of speech: noun

Example: The aurochs once roamed across Europe.

Category: Nature › Animals

Synonyms:

• wild cattle
• bison

Meaning: The southern lights; a natural light display in the sky.

Part of speech: noun

Example: The aurora australis can be seen in Antarctica.

Category: Nature › Astronomy

Synonyms:

• southern lights
• aurora

Meaning: The northern lights; a natural light display in the sky.

Part of speech: noun

Example: The aurora borealis is visible in northern regions.

Category: Nature › Astronomy

Synonyms:

• northern lights
• aurora

Meaning: The act of listening to sounds within the body, typically with a stethoscope.

Part of speech: noun

Example: Auscultation is important for diagnosing heart conditions.

Category: Medicine › Diagnosis

Synonyms:

• listening
• examination

Meaning: Support or protection; guidance.

Part of speech: noun

Example: The event was held under the auspices of the local government.

Category: Politics

Synonyms:

• patronage
• support

Meaning: In a severe or strict manner.

Part of speech: adverb

Example: He spoke austerely to the students.

Category: Education

Synonyms:

• sternly
• strictly