Part of speech Meaning, Definition & Usage

  1. noun one of the traditional categories of words intended to reflect their functions in a grammatical context
    form class; word class.

WordNet


Definitions
  1. (Gram.), a sort or class of words of a particular character; thus, the noun is a part of speech denoting the name of a thing; the verb is a part of speech which asserts something of the subject of a sentence.

Webster 1913