chest vs highboy

chest and highboy both are nouns.

Word	Noun	Adjective	Verb	Adverb
chest	Yes	No	No	No
highboy	Yes	No	No	No

As nouns, highboy is a hyponym of chest; that is, highboy is a word with a more specific, narrower meaning than chest:

chest: furniture with drawers for keeping clothes
highboy: a tall chest of drawers divided into two sections and supported on four legs

Other hyponyms of chest include chiffonier, commode, tallboy, lowboy.

chest (noun)	highboy (noun)
box with a lid; used for storage; usually large and sturdy	a tall chest of drawers divided into two sections and supported on four legs
furniture with drawers for keeping clothes
the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates
the front of the trunk from the neck to the abdomen