offeror vs helper

offeror and helper both are nouns.

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

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

offeror: someone who presents something to another for acceptance or rejection
helper: a person who helps people or institutions (especially with financial help)

Other hypernyms of offeror include benefactor.

offeror (noun)	helper (noun)
someone who presents something to another for acceptance or rejection	a person who helps people or institutions (especially with financial help)
	a person who contributes to the fulfillment of a need or furtherance of an effort or purpose