carbineer vs carabineer

carbineer and carabineer both are nouns.

Word	Noun	Adjective	Verb	Adverb
carbineer	Yes	No	No	No
carabineer	Yes	No	No	No

As nouns, carbineer and carabineer are synonyms defined as:

carbineer and carabineer: a soldier (historically a mounted soldier) who is armed with a carbine

Other synonyms of carbineer include carabinier.

carbineer (noun)	carabineer (noun)
a soldier (historically a mounted soldier) who is armed with a carbine	a soldier (historically a mounted soldier) who is armed with a carbine