dresser vs piece of furniture

dresser and piece of furniture both are nouns.

Word	Noun	Adjective	Verb	Adverb
dresser	Yes	No	No	No
piece of furniture	Yes	No	No	No

As nouns, piece of furniture is a hypernym of dresser; that is, piece of furniture is a word with a broader meaning than dresser:

dresser: furniture with drawers for keeping clothes
piece of furniture: furnishings that make a room or other area ready for occupancy

Other hypernyms of dresser include article of furniture, furniture.

dresser (noun)	piece of furniture (noun)
furniture with drawers for keeping clothes	furnishings that make a room or other area ready for occupancy
a cabinet with shelves
low table with mirror or mirrors where one sits while dressing or applying makeup
a wardrobe assistant for an actor
a person who dresses in a particular way