hautbois vs hautboy

hautbois and hautboy both are nouns.

Word	Noun	Adjective	Verb	Adverb
hautbois	Yes	No	No	No
hautboy	Yes	No	No	No

As nouns, hautbois and hautboy are synonyms defined as:

hautbois and hautboy: a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece

Other synonyms of hautbois include oboe.

hautbois (noun)	hautboy (noun)
a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece	a slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece