broad·cast 
(brôdkăst′)
(brôdkăst′)v. broad·cast or broad·cast·ed, broad·cast·ing, broad·casts
v.tr.
1. To communicate or transmit (a signal, a message, or content, such as audio or video programming) to numerous recipients simultaneously over a communication network: a radio station that broadcasts news; an agency broadcasting an appeal for donations over the internet.
2. To make known over a wide area: reporters who broadcast unchecked rumors in order to get the story out first; "The birds sang in flight because that was the only way, in this treeless terrain, to broadcast their claims across their chosen pieces of land" (Kenn Kaufman). See Synonyms at announce.
3. To sow (seed) over a wide area, especially by hand.
v.intr.
To communicate or transmit a signal, a message, or content, such as audio or video programming, to numerous recipients simultaneously over a communication network.
n.
1. The act or process of broadcasting a signal, a message, or content, such as audio or video programming.
2. A signal, message, or audio or video program that is broadcast over a communication network: watched the morning news broadcast.
3. The act of scattering seed.
adj.
1.
a. Communicated or transmitted by means of broadcasting, as over a communications network: a broadcast announcement.
b. Of or relating to the broadcasting of audio or video content over communication networks, as in television or radio.
2. Widely known.
3. Scattered over a wide area.
adv.
In a scattered manner.
broadcast′er n.