carabinier vs carabineer

carabinier and carabineer both are nouns.

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

As nouns, carabinier and carabineer are synonyms defined as:

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

Other synonyms of carabinier include carbineer.

carabinier (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