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part of speech: Meaning and Definition of

part' of speech'

Pronunciation: [key]
— Gram. Gram.
  1. any of the classes into which words in some languages, as Latin and English, have traditionally been divided on the basis of their meaning, form, or syntactic function, as, in English, noun, pronoun, verb, adverb, adjective, preposition, conjunction, and interjection.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.