buggy vs equipage

buggy and equipage both are nouns.

Word	Noun	Adjective	Verb	Adverb
buggy	Yes	Yes	No	No
equipage	Yes	No	No	No

As nouns, equipage is a hypernym of buggy; that is, equipage is a word with a broader meaning than buggy:

Other hypernyms of buggy include carriage, rig.

buggy (noun)	equipage (noun)
a small lightweight carriage; drawn by a single horse	a vehicle with wheels drawn by one or more horses
	equipment and supplies of a military force

buggy (adjective)	equipage (adjective)
infested with bugs
informal or slang terms for mentally irregular