broadcast

adj. sent to or over a broad area, transmitted, aired, announced, publicized

v. transmit over the radio; publicize, advertise

n. transmission, dispatch, radio program

Broadcasting is the distribution of audio and/or video signals which transmit programs to an audience. The audience may be the general public or a relatively large sub-audience, such as children or young adults. Even senior citizens sometimes watch programs transmitted to an audience.There are wide variety of broadcasting systems, all of which have different capabilities. The largest broadcasting systems are institutional public address systems, which transmit nonverbal messages and music within a school or hospital, and low-powered broadcasting systems which transmit radio stations or television stations to a small area. National radio and television broadcasters have nationwide coverage, using retransmitter towers, satellite systems, and cable distribution. Satellite radio and television broadcasters can cover even wider areas, such as entire continents, and Internet channels can distribute text or streamed music worldwide.
See more at Wikipedia.org...

Noun
1. message that is transmitted by radio or television
(hypernym) message
(hyponym) radio broadcast
(derivation) air, send, beam, transmit
2. a radio or television show; "did you see his program last night?"
(synonym) program, programme
(hypernym) show
(hyponym) sitcom
(derivation) air, send, beam, transmit
Verb
1. broadcast over the airwaves, as in radio or television; "We cannot air this X-rated song"
(synonym) air, send, beam, transmit
(hypernym) publicize, publicise, air, bare
(hyponym) satellite
(cause) air
(derivation) program, programme
(classification) broadcast medium, broadcasting
2. sow over a wide area, especially by hand; "broadcast seeds"
(hypernym) sow, sough, seed
(derivation) broadcaster, spreader
(classification) farming, agriculture, husbandry
3. cause to become widely known; "spread information"; "circulate a rumor"; "broadcast the news"
(synonym) circulate, circularize, circularise, distribute, disseminate, propagate, spread, diffuse, disperse, pass around
(hypernym) publicize, publicise, air, bare
(hyponym) sow, sough
(cause) go around, spread, circulate
(verb-group) go around, spread, circulate
(derivation) program, programme

(n.)
A casting or throwing seed in all directions, as from the hand in sowing.
  

(adv.)
So as to scatter or be scattered in all directions; so as to spread widely, as seed from the hand in sowing, or news from the press.
  

(a.)
Scattering in all directions (as a method of sowing); -- opposed to planting in hills, or rows.
  

(a.)
Cast or dispersed in all directions, as seed from the hand in sowing; widely diffused.
  

A transmission to multiple, unspecified recipients. On Ethernet, a broadcast packet is a special type of multicast packet which all nodes on the network are always willing to receive.