send vs rebroadcast

send is not a noun while rebroadcast is a noun.

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

As verbs, rebroadcast is a hyponym of send; that is, rebroadcast is a word with a more specific, narrower meaning than send:

Other hyponyms of send include satellite, sportscast, telecast, televise, interrogate, rerun.

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

send (verb)	rebroadcast (verb)
cause to be directed or transmitted to another place	broadcast again, as of a film
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