Subordinate

1. adjective

   (of a clause) unable to stand alone syntactically as a complete sentence

   “a subordinate (or dependent) clause functions as a noun or adjective or adverb within a sentence”

   Similar: dependent

2. adjective

   subject or submissive to authority or the control of another

   “a subordinate kingdom”

3. noun

   an assistant subject to the authority or control of another

   Similar: subsidiary, underling, foot soldier

4. verb

   rank or order as less important or consider of less value

   “Art is sometimes subordinated to Science in these schools”