television receiver vs tv

television receiver and tv both are nouns.

Word	Noun	Adjective	Verb	Adverb
television receiver	Yes	No	No	No
tv	Yes	No	No	No

As nouns, television receiver and tv are synonyms defined as:

television receiver and tv: an electronic device that receives television signals and displays them on a screen

Other synonyms of television receiver include boob tube, goggle box, idiot box, television, television set, telly, tv set.

television receiver (noun)	tv (noun)
an electronic device that receives television signals and displays them on a screen	an electronic device that receives television signals and displays them on a screen