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An article (with the linguistic glossing abbreviation art) is a word that is used with a noun (as a standalone word or a prefix or suffix) to specify grammatical definiteness of the noun, and in some languages extending to volume or numerical scope.

The articles in English grammar are the and a/an, and in certain contexts some. “An” and “a” are modern forms of the Old English “an”, which in Anglian dialects was the number “one” (compare “on” in Saxon dialects) and survived into Modern Scots as the number “owan”. Both “on” (respelled “one” by the Norman language) and “an” survived into Modern English, with “one” used as the number and “an” (“a”, before nouns that begin with a consonant sound) as an indefinite article.