CEFR B2

acid

noun, adjective

Meaning

A substance that tastes sour, can dissolve some materials, and turns blue litmus paper red. Acids have a pH of less than 7.

Examples

Vinegar is a common household acid.
The scientist tested the unknown liquid to see if it was an acid or a base.

Synonyms: sour, corrosive, tart, caustic

Learn English that separates you from the crowd with Anaversity: private classes, Ani practice, Campus tools, and a public English-learning community.

acid (B2)

noun, adjective

Pronunciation: /ˈæsɪd/

Definition

A substance that tastes sour, can dissolve some materials, and turns blue litmus paper red. Acids have a pH of less than 7.

Examples

Vinegar is a common household acid.
The scientist tested the unknown liquid to see if it was an acid or a base.

How to Use acid

acidic (adjective formation): Having the properties of an acid; tasting sour or sharp. — "The soil in this region is naturally acidic."
acidify (verb formation): To make or become acidic. — "The bacteria can acidify the milk."

Synonyms of acid

Words with a similar meaning to acid:

Antonyms of acid

Words with the opposite meaning to acid:

Browse the full Anaversity dictionary