direction finder vs receiver

direction finder and receiver both are nouns.

Word	Noun	Adjective	Verb	Adverb
direction finder	Yes	No	No	No
receiver	Yes	No	No	No

As nouns, receiver is a hypernym of direction finder; that is, receiver is a word with a broader meaning than direction finder:

Other hypernyms of direction finder include receiving system.

direction finder (noun)	receiver (noun)
radio; determines the direction of incoming radio waves	set that receives radio or tv signals
	earphone that converts electrical signals into sounds
	a person who receives something
	(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