drill master vs noncom

drill master and noncom both are nouns.

Word	Noun	Adjective	Verb	Adverb
drill master	Yes	No	No	No
noncom	Yes	No	No	No

As nouns, noncom is a hypernym of drill master; that is, noncom is a word with a broader meaning than drill master:

drill master: a noncommissioned officer who instructs recruits in military marching and discipline
noncom: a military officer appointed from enlisted personnel

Other hypernyms of drill master include enlisted officer, noncommissioned officer.

drill master (noun)	noncom (noun)
a noncommissioned officer who instructs recruits in military marching and discipline	a military officer appointed from enlisted personnel