indefinite article

American  

noun

Grammar.

• indefinite articles
  plural

1. an article, as English a, an, that denotes class membership of the noun it modifies without particularizing it.

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indefinite article British  

noun

1. grammar a determiner that expresses nonspecificity of reference, such as a, an, or some Compare definite article

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indefinite article Cultural  

1. The word a or an introducing an unspecified noun or the name of a general category: “a dog,” “an apple,” “an orange.” An is used when the next word begins with a vowel or a silent (unpronounced) h, as in “an egg” or “an hour.”

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Other Word Forms

Noun Inflected Forms

• indefinite articles
  plural

Etymology

Origin of indefinite article

First recorded in 1720–30

Example Sentences

See Examples For:

indefinite article

His title, “Enemy of the People,” dispenses with the indefinite article — a decision he chalked up to “Chekhovian impulses.”

From Los Angeles Times ● Aug. 26, 2026

The "n" detached itself from the "-apron" and instead joined up with the indefinite article "a" — resulting in what we now call "an apron" today.

From Salon ● Jul. 10, 2022

I thought a singular noun should always follow the singular indefinite article “a.”

From Washington Post ● Jun. 4, 2020

Plus, no one uses the indefinite article “a” in front of a language.

From Slate ● Aug. 30, 2018

At this point he wants to refer to a subset of those herons, so he introduces just these ones with the indefinite article: A few come to Cape Cod.

From "The Sense of Style" by Steven Pinker