post chaise vs equipage

post chaise and equipage both are nouns.

Word	Noun	Adjective	Verb	Adverb
post chaise	Yes	No	No	No
equipage	Yes	No	No	No

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

post chaise: closed horse-drawn carriage with four wheels; formerly used to transport passengers and mail
equipage: a vehicle with wheels drawn by one or more horses

Other hypernyms of post chaise include carriage, rig.

post chaise (noun)	equipage (noun)
closed horse-drawn carriage with four wheels; formerly used to transport passengers and mail	a vehicle with wheels drawn by one or more horses
	equipment and supplies of a military force