Ответ:1) A noun definition in a dictionary is a word or group of words that refer to a person, place, or thing, or any syntactically similar word.

2) The definition of an adjective in the dictionary is a word imputing a characteristic to a noun or pronoun.

3) Verb - it is a class of words that names an action or state.

4) The definition of an adverb in the dictionary is a word or group of words that serve to change a whole sentences, verb, another adverb or adjectives.

Объяснение: заранее не за что