throw rug vs carpet

throw rug and carpet both are nouns.

Word	Noun	Adjective	Verb	Adverb
throw rug	Yes	No	No	No
carpet	Yes	No	Yes	No

As nouns, carpet is a hypernym of throw rug; that is, carpet is a word with a broader meaning than throw rug:

throw rug: a small rug; several can be used in a room
carpet: floor covering consisting of a piece of thick heavy fabric (usually with nap or pile)

Other hypernyms of throw rug include carpeting, rug.

throw rug (noun)	carpet (noun)
a small rug; several can be used in a room	floor covering consisting of a piece of thick heavy fabric (usually with nap or pile)
	a natural object that resembles or suggests a carpet

throw rug (verb)	carpet (verb)
	cover with a carpet
	cover completely, as if with a carpet
	form a carpet-like cover (over)