Containing more than one; consisting of two or more, or designating two or more.
Specifically In grammar, noting the form of a word (primarily of a noun or pronoun, then of an adjective qualifying it, and finally of a verb of which it is subject) which marks it as signifying or relating to more than one, as distinguished from singular, signifying only one; in some languages, which have a dual form for two, signifying more than two: thus, boys is the plural number of boy, men of man, we of I, these of this, are of is, and were of was.
noun.
The state of being manifold or more than one.
noun.
That form of a word which expresses plurality, or the plural number.