Further elaborations are given in the subsections to this lesson:
A modifier is a single word or a group of words which can be a phrase or a clause that describes or provides more information about a word in a sentence. The word in the sentence can be a subject, noun, verb, adjective, adverb, object, complement or another modifier. Most commonly, the modifying words are adjectives and adverbs. As adjectives, they modify nouns and pronouns, and as adverbs, they modify adjectives, verbs and other adverbs. A noun too can be used as a modifier of another noun.
Although a modifier is an optional element in a clause or sentence, and its removal will not affect the clause or sentence grammatically, it performs an important role in providing a clear and effective expression or a complete and accurate description.
A modifier can be easily misused by misplacing it in a sentence so that it wrongly modifies another word or noun resulting in a misplaced modifier or dangling modifier. To avoid such an eventuality, a modifier must be placed as close as possible to the word that it modifies.
A modifier can come before or after the noun that it modifies.