stock-in-trade vs equipment

stock-in-trade and equipment both are nouns.

Word	Noun	Adjective	Verb	Adverb
stock-in-trade	Yes	No	No	No
equipment	Yes	No	No	No

As nouns, equipment is a hypernym of stock-in-trade; that is, equipment is a word with a broader meaning than stock-in-trade:

stock-in-trade: any equipment constantly used as part of a profession or occupation
equipment: an instrumentality needed for an undertaking or to perform a service

stock-in-trade (noun)	equipment (noun)
any equipment constantly used as part of a profession or occupation	an instrumentality needed for an undertaking or to perform a service