rebroadcast vs send

rebroadcast is a noun but send is not a noun.

Word	Noun	Adjective	Verb	Adverb
rebroadcast	Yes	No	Yes	No
send	No	No	Yes	No

As verbs, send is a hypernym of rebroadcast; that is, send is a word with a broader meaning than rebroadcast:

Other hypernyms of rebroadcast include air, beam, broadcast, transmit.

rebroadcast (noun)	send (noun)
a broadcast that repeated at a later time

rebroadcast (verb)	send (verb)
broadcast again, as of a film	cause to be directed or transmitted to another place
	transfer
	broadcast over the airwaves, as in radio or television
	assign to a station
	to cause or order to be taken, directed, or transmitted to another place
	transport commercially
	cause to go somewhere
	cause to be admitted; of persons to an institution