hackamore vs headgear

hackamore and headgear both are nouns.

Word	Noun	Adjective	Verb	Adverb
hackamore	Yes	No	No	No
headgear	Yes	No	No	No

As nouns, headgear is a hypernym of hackamore; that is, headgear is a word with a broader meaning than hackamore:

hackamore: rope or canvas headgear for a horse, with a rope for leading
headgear: stable gear consisting of any part of a harness that fits about the horse's head

hackamore (noun)	headgear (noun)
rope or canvas headgear for a horse, with a rope for leading	clothing for the head
	stable gear consisting of any part of a harness that fits about the horse's head
	the hoist at the pithead of a mine