Meaning: The act of accepting something without protest.

Part of speech: noun

Example: His acquiescence to the plan surprised everyone.

Category: Social › Relationships

Synonyms:

• agreement
• compliance

Antonyms: resistance

Meaning: A personality trait developed through experience or education.

Part of speech: noun

Example: Her acquired character makes her a great leader.

Category: Education › Personal Development

Synonyms: developed trait

Meaning: Eager to acquire and possess things.

Part of speech: adjective

Example: He has an acquisitive nature, always wanting more.

Category: Business › Behavior

Synonyms:

• greedy
• covetous

Antonyms: generous

Meaning: A judgment that a person is not guilty of a crime.

Part of speech: noun

Example: His acquittal was a relief to his family.

Category: Law › Criminal Law

Synonyms:

• exoneration
• absolution

Meaning: Having a strong, unpleasant smell or taste.

Part of speech: adjective

Example: The acrid smoke from the fire filled the air.

Category: Science › Chemistry

Synonyms:

• sharp
• bitter

Antonyms: pleasant

Meaning: Angry and bitter in tone or manner.

Part of speech: adjective

Example: The debate became acrimonious as tensions rose.

Category: Politics › Debate

Synonyms:

• hostile
• bitter

Antonyms: friendly

Meaning: Bitterness or ill feeling.

Part of speech: noun

Example: There was acrimony between the two parties during the negotiations.

Category: Politics › Debate

Synonyms:

• bitterness
• hostility

Antonyms: friendliness

Meaning: The most prestigious dialect of a language.

Part of speech: noun

Example: The acrolect is often used in formal settings.

Category: Education › Linguistics

Synonyms: standard dialect

Meaning: A high city, often the site of important buildings in ancient Greece.

Part of speech: noun

Example: The Acropolis in Athens is a famous historical site.

Category: History › Architecture

Synonyms:

• fortress
• citadel

Meaning: a group organized to take action on a specific issue

Part of speech: noun

Example: The action group focused on environmental protection.

Category: Politics › Activism

Synonyms:

• activist group
• coalition

Meaning: a method of research that involves taking action to improve practices

Part of speech: noun

Example: Action research helps teachers improve their methods.

Category: Education › Research

Synonyms: participatory research

Meaning: a person who takes action or is involved in action

Part of speech: noun

Example: He is known as an actioner in the film industry.

Category: Arts › Film

Meaning: a legal term for physical injury inflicted on someone

Part of speech: noun

Example: He was charged with actual bodily harm.

Category: Law › Criminal Law

Synonyms: physical injury

Meaning: to make something a reality

Part of speech: verb

Example: They hope to actualize their plans soon.

Category: General

Synonyms:

• realize
• achieve

Antonyms: abandon

Meaning: to cause something to operate

Part of speech: verb

Example: The switch will actuate the machine.

Category: Technology › Engineering

Synonyms:

• activate
• trigger

Meaning: sharpness or keenness of thought, vision, or hearing

Part of speech: noun

Example: His acuity in mathematics is impressive.

Category: Health › Vision

Synonyms:

• sharpness
• clearness

Antonyms: dullness

Meaning: the ability to make good judgments and quick decisions

Part of speech: noun

Example: Her business acumen helped the company grow.

Category: Business › Management

Synonyms:

• insight
• shrewdness

Antonyms: ignorance

Meaning: a professional who practices acupuncture

Part of speech: noun

Example: She visited an acupuncturist for her back pain.

Category: Medicine › Alternative Medicine

Synonyms: needle therapist

Meaning: a suffix used to form nouns indicating a state or quality

Part of speech: suffix

Example: The word 'democracy' ends with the suffix -acy.

Category: Language › Morphology

Meaning: not having a cycle or cycles

Part of speech: adjective

Example: An acyclic graph does not loop back on itself.

Category: Mathematics › Graph Theory

Synonyms: non-cyclic

Meaning: a medication used to treat viral infections

Part of speech: noun

Example: Acyclovir is often prescribed for herpes.

Category: Medicine › Pharmacology

Synonyms: antiviral

Meaning: To infinity; endlessly.

Part of speech: adverb

Example: The discussion went on ad infinitum.

Category: Philosophy

Synonyms: endlessly

Meaning: To a sickening or excessive degree.

Part of speech: adverb

Example: They discussed the topic ad nauseam.

Category: Communication

Synonyms: excessively

Meaning: unbreakable or extremely hard

Part of speech: adjective

Example: The adamantine walls of the fortress were impenetrable.

Category: General

Synonyms:

• hard
• unyielding

Antonyms: soft

Meaning: Analog-to-Digital Converter, a device that converts analog signals to digital

Part of speech: acronym

Example: The ADC is essential for digital audio processing.

Category: Technology › Electronics

Meaning: a chemical reaction where two or more substances combine

Part of speech: noun

Example: An addition reaction is common in organic chemistry.

Category: Science › Chemistry

Synonyms: combination reaction

Meaning: to confuse or make unclear

Part of speech: verb

Example: The complicated instructions addled him.

Category: Language

Synonyms:

• confuse
• bewilder

Antonyms: clarify

Meaning: confused or muddled

Part of speech: adjective

Example: His addled thoughts made it hard to concentrate.

Category: Language

Synonyms:

• confused
• bewildered

Meaning: To bring forward as evidence or an example.

Part of speech: verb

Example: She adduced several reasons for her decision.

Category: Law

Synonyms:

• cite
• present

Meaning: Attention Deficit Hyperactivity Disorder, a condition affecting focus and behavior.

Part of speech: noun

Example: ADHD can impact a child's learning abilities.

Category: Medicine › Psychology

Synonyms: attention deficit disorder

Meaning: A person who supports a particular idea or party.

Part of speech: noun

Example: He is a strong adherent of environmental policies.

Category: Politics

Synonyms:

• supporter
• follower

Meaning: The process of sticking or joining two surfaces together.

Part of speech: noun

Example: The adhesion of the tape was strong.

Category: Science

Synonyms: attachment

Meaning: Attacking an opponent's character rather than their argument.

Part of speech: adjective

Example: The debate turned into an ad hominem attack.

Category: Politics

Synonyms: personal attack

Meaning: A farewell or goodbye.

Part of speech: interjection

Example: Adieu, my friend, until we meet again.

Category: Communication

Synonyms: farewell

Meaning: Two angles that share a common side and vertex.

Part of speech: noun

Example: The adjacent angles in the triangle are complementary.

Category: Mathematics

Synonyms: neighboring angle

Meaning: To declare or pronounce formally.

Part of speech: verb

Example: The court will adjudge the defendant guilty.

Category: Law

Synonyms:

• declare
• pronounce

Meaning: To make a formal judgment or decision about a dispute.

Part of speech: verb

Example: The judge will adjudicate the case next week.

Category: Law

Synonyms:

• decide
• settle

Meaning: To urge or request someone solemnly.

Part of speech: verb

Example: He adjured his friend to tell the truth.

Category: Law

Synonyms:

• urge
• entreat

Meaning: To speak or perform without preparation.

Part of speech: verb

Example: He had to ad-lib during the presentation.

Category: Arts

Synonyms: improvise

Meaning: The highest rank in the navy.

Part of speech: noun

Example: He was promoted to Admiral of the Fleet.

Category: Military

Synonyms: fleet admiral