PREPOSITION definition : 1. in grammar, a word that is used before a noun, a noun phrase, or a pronoun, connecting it to…. Learn more. Preposition Definition Simply put, a preposition is a word or group of words that links nouns, pronouns, and phrases to show direction, place, time, location, spatial relationships, or to introduce an object. A Preposition is a word used with a noun or a pronoun to show how the person, place or thing denoted by the noun or pronoun stands in relation to something else.
