entrepreneur vs enterpriser

entrepreneur and enterpriser both are nouns.

Word	Noun	Adjective	Verb	Adverb
entrepreneur	Yes	No	No	No
enterpriser	Yes	No	No	No

As nouns, entrepreneur and enterpriser are synonyms defined as:

entrepreneur and enterpriser: someone who organizes a business venture and assumes the risk for it

entrepreneur (noun)	enterpriser (noun)
someone who organizes a business venture and assumes the risk for it	someone who organizes a business venture and assumes the risk for it