pooler vs sharer

pooler and sharer both are nouns.

Word	Noun	Adjective	Verb	Adverb
pooler	Yes	No	No	No
sharer	Yes	No	No	No

As nouns, sharer is a hypernym of pooler; that is, sharer is a word with a broader meaning than pooler:

pooler: someone who shares in and contributes to a general fund for use by all
sharer: someone who has or gives or receives a part or a share

Other hypernyms of pooler include partaker.

pooler (noun)	sharer (noun)
someone who shares in and contributes to a general fund for use by all	someone who has or gives or receives a part or a share