event planner vs helper

event planner and helper both are nouns.

Word	Noun	Adjective	Verb	Adverb
event planner	Yes	No	No	No
helper	Yes	No	No	No

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

event planner: someone who plans social events as a profession (usually for government or corporate officials)
helper: a person who contributes to the fulfillment of a need or furtherance of an effort or purpose

Other hypernyms of event planner include assistant, help, supporter.

event planner (noun)	helper (noun)
someone who plans social events as a profession (usually for government or corporate officials)	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