receiver vs warrantee

receiver and warrantee both are nouns.

Word	Noun	Adjective	Verb	Adverb
receiver	Yes	No	No	No
warrantee	Yes	No	No	No

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

receiver (noun)	warrantee (noun)
set that receives radio or tv signals	a written assurance that some product or service will be provided or will meet certain specifications
earphone that converts electrical signals into sounds	a customer to whom a warrant or guarantee is given
a person who receives something	a recipient of a warrant issued by a court in the United States
(law) a person (usually appointed by a court of law) who liquidates assets or preserves them for the benefit of affected parties
a football player who catches (or is supposed to catch) a forward pass
the tennis player who receives the serve