broadcast

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To communicate or transmit (a signal, a message, or content, such as audio or video programming) to numerous recipients simultaneously over a communication network.
• intransitive verb To make known over a wide area: synonym: announce.
• intransitive verb To sow (seed) over a wide area, especially by hand.
• intransitive verb To communicate or transmit a signal, a message, or content, such as audio or video programming, to numerous recipients simultaneously over a communication network.
• noun The act or process of broadcasting a signal, a message, or content, such as audio or video programming.
• noun A signal, message, or audio or video program that is broadcast over a communication network.
• noun The act of scattering seed.
• adjective Communicated or transmitted by means of broadcasting, as over a communications network.
• adjective Of or relating to the broadcasting of audio or video content over communication networks, as in television or radio.
• adjective Widely known.
• adjective Scattered over a wide area.
• adverb In a scattered manner.

from The Century Dictionary.

• noun In agriculture, a method of sowing in which the seed is thrown from the hand in handfuls.
• Cast or dispersed upon the ground with the hand, as seed in sowing: opposed to sowed in drills or rows.
• Widely spread or diffused.
• To sow broadcast.
• By scattering or throwing at large from the hand: as, to sow broadcast.
• So as to disseminate widely; in wide dissemination.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Agric.) A casting or throwing seed in all directions, as from the hand in sowing.
• noun an act of broadcasting; specifically, a program in which sounds or images are transmitted in all directions from a radio or television station; -- usually referring to a scheduled program on a commercial or public service radio or television station, using the normal radio frequencies for those media, in contrast to a radiotelephone conversation, which may also be transmitted in all directions, but is intended for receipt by a base station in the telephone network.
• adjective Cast or dispersed in all directions, as seed from the hand in sowing; widely diffused.
• adjective Scattering in all directions (as a method of sowing); -- opposed to planting in hills, or rows.
• adverb 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.
• verb to cast or disperse in all directions, as seed from the hand in sowing; to diffuse widely.
• verb to transmit (sounds, images, or other signals) in all directions from a radio or television station.
• verb to disseminate (information, a speech, an advertisement, etc.) from a radio or television station.
• verb to spread (information, news, gossip) widely by any means.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective cast or scattered widely, in all directions
• noun A transmission of a radio or television programme aired to be received by anyone with a receiver.
• noun A programme (show, bulletin, documentary ...) so transmitted.
• noun dated The act of scattering seed.
• verb To transmit a message or signal via radio waves or electronic means
• verb To transmit a message over a wide area
• verb To appear as speaker, presenter or performer in a broadcast program
• verb archaic To sow seeds over a wide area
• verb To send an email in a single transmission to a (typically large) number of people
• verb Simple past tense and past participle of broadcast.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun message that is transmitted by radio or television
• verb broadcast over the airwaves, as in radio or television
• verb sow over a wide area, especially by hand
• noun a radio or television show
• verb cause to become widely known