supporter vs helper

supporter and helper both are nouns.

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

As nouns, supporter and helper are synonyms defined as:

supporter and helper: a person who contributes to the fulfillment of a need or furtherance of an effort or purpose

Other synonyms of supporter include assistant, help.

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

supporter: someone who supports or champions something
helper: a person who helps people or institutions (especially with financial help)

Other hypernyms of supporter include benefactor.

supporter (noun)	helper (noun)
a band (usually elastic) worn around the leg to hold up a stocking (or around the arm to hold up a sleeve)	a person who helps people or institutions (especially with financial help)
a support for the genitals worn by men engaging in strenuous exercise	a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
a person who backs a politician or a team etc.
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose
someone who supports or champions something