aide vs helper

aide and helper both are nouns.

Word	Noun	Adjective	Verb	Adverb
aide	Yes	No	No	No
helper	Yes	No	No	No

As nouns, helper is a hypernym of aide; that is, helper is a word with a broader meaning than aide:

aide: someone who acts as assistant
helper: a person who contributes to the fulfillment of a need or furtherance of an effort or purpose

Other hypernyms of aide include assistant, help, supporter.

aide (noun)	helper (noun)
someone who acts as assistant	a person who helps people or institutions (especially with financial help)
an officer who acts as military assistant to a more senior officer	a person who contributes to the fulfillment of a need or furtherance of an effort or purpose