apartment vs suite

apartment and suite both are nouns.

Word	Noun	Adjective	Verb	Adverb
apartment	Yes	No	No	No
suite	Yes	No	No	No

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

apartment: a suite of rooms usually on one floor of an apartment house
suite: apartment consisting of a series of connected rooms used as a living unit (as in a hotel)

apartment (noun)	suite (noun)
a suite of rooms usually on one floor of an apartment house	apartment consisting of a series of connected rooms used as a living unit (as in a hotel)
	a musical composition of several movements only loosely connected
	the group following and attending to some important person
	a matching set of furniture