Noun

1. An assistant subject to the authority or control of another
2. A word that is more specific than a given word

Adjective

1. Lower in rank or importance
2. Subject or submissive to authority or the control of another
3. (of a clause) unable to stand alone syntactically as a complete sentence

Verb

1. Rank or order as less important or consider of less value
2. Make subordinate, dependent, or subservient