What is a word that modifies a noun?

Hint: A noun is a term that refers to a single entity or group of things, such as living beings, locations, behaviour, attributes, states of nature, or concepts. However, since a noun is not a semantic form, it cannot be classified according to its meaning. Verbs can express actions and states of being, adjectives can express attributes, and adverbs can express locations.

Complete answer:
A modifier is a noun, expression, or clause in a sentence that modifies (that is, tells about) another word in the same sentence. The word "pizza" is modified by the word "vegetarian" in the following sentence: I'm going to the restaurant for a vegetarian pizza, for example.

Adjectives are modifiers for nouns. They're sometimes referred to as "describing terms" because they offer additional facts about a noun, such as how it appears (the white horse), how many there are (the three boys), or which one it is (the last house). Verbs and other adjectives are not modified by adjectives.

A possessive adjective replaces a possessive noun and indicates that the noun belongs to someone or something: his car, her wedding, its flowers, their home, and so on.

Note: A word that modifies (explains) a verb (he speaks loudly), an adjective (very good looking), another adverb (concluded too quickly), or even a whole sentence is considered an adverb (Fortunately, I had brought an umbrella). While many adverbs end in -ly, some (such as soon) have the same appearance as their adjective equivalents.

An adverb can also modify adjectives, which are additional details regarding a noun; for example, a very merry christmas, his several big speeches, an absolutely tasty dish, and so on.