Part of speech of words that designate a person, place, action, property or thing etc.

Part of speech of words that evoke an action, state, or occurrence, and forming the main part of the predicate of a sentence, such as "manage", "perform", and "assemble".

Part of speech of words that evoke properties of nouns, such as "big" and "glossy".

Part of speech of words that evoke the mode of action of the verb, for instance, "completely" and "normally".