ocarina vs wind instrument

ocarina and wind instrument both are nouns.

Word	Noun	Adjective	Verb	Adverb
ocarina	Yes	No	No	No
wind instrument	Yes	No	No	No

As nouns, wind instrument is a hypernym of ocarina; that is, wind instrument is a word with a broader meaning than ocarina:

ocarina: egg-shaped terracotta wind instrument with a mouthpiece and finger holes
wind instrument: a musical instrument in which the sound is produced by an enclosed column of air that is moved by bellows or the human breath

Other hypernyms of ocarina include wind.

ocarina (noun)	wind instrument (noun)
egg-shaped terracotta wind instrument with a mouthpiece and finger holes	a musical instrument in which the sound is produced by an enclosed column of air that is moved by bellows or the human breath