aide vs nurse's aide

aide and nurse's aide both are nouns.

Word	Noun	Adjective	Verb	Adverb
aide	Yes	No	No	No
nurse's aide	Yes	No	No	No

As nouns, nurse's aide is a hyponym of aide; that is, nurse's aide is a word with a more specific, narrower meaning than aide:

aide: someone who acts as assistant
nurse's aide: someone who assists a nurse in tasks that require little formal training

Other hyponyms of aide include nursing aide.

aide (noun)	nurse's aide (noun)
someone who acts as assistant	someone who assists a nurse in tasks that require little formal training
an officer who acts as military assistant to a more senior officer