What is a Modifier? Modifiers are words or phrases that modify, describe, or add more details to another word in a sentence. Adverbs and adjectives are modifiers, so are phrases and clauses. Adverbs modify a verb, an adjective, or another adverb. Adjectives modify a noun or pronoun. Words may form phrases and clauses to modify another word.  He arrived early. … Continue reading Modifiers: Detailing Your Sentences