NOUN:
1. A content word that can be used to refer to a person, place, thing, quality, or action.
2. The word class that can serve as the subject or object of a verb, the object of a preposition, or in apposition.
PRONOUN:
1. A function word that is used in place of a noun or noun phrase.
VERB:
1. The word class that serves as the predicate of a sentence.
2. A content word that denotes an action, occurrence, or state of existence
ADVERB:
1.The word class that qualifies verbs or clauses.
2. A word that modifies something other than a noun.
NOUN - ADJECTIVE:
1. A word that expresses an attribute of something.
2. The word class that qualifies nouns.
Adjective: adjective:
1. Of or relating to or functioning as an adjective.
2. Relating to court practice and procedure as opposed to the principles of law.
PREPOSITION:
1. A function word that combines with a noun or pronoun or noun phrase to form a prepositional phrase that can have an adverbial or adjectival relation to some other word
2. (linguistics) the placing of one linguistic element before another (as placing a modifier before the word it modifies in a sentence or placing an affix before the base to which it is attached).
ARTICLE:
1. A determiner that may indicate the specificity of reference of a noun phrase.