Broadcast

Broad·cast

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

Cast or dispersed in all directions, as seed from the hand in sowing; widely diffused.
Scattering in all directions (as a method of sowing); -- opposed to planting in hills, or rows.

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.

to cast or disperse in all directions, as seed from the hand in sowing; to diffuse widely.
to transmit (sounds, images, or other signals) in all directions from a radio or television station.
to disseminate (information, a speech, an advertisement, etc.) from a radio or television station.
to spread (information, news, gossip) widely by any means.