verb (used with object),broad·cast or broad·cast·ed,broad·cast·ing.
to transmit (programs) from a radio or television station.
to speak, perform, sponsor, or present on a radio or television program: The president will broadcast his message on all stations tonight.
to cast or scatter abroad over an area, as seed in sowing.
to spread widely; disseminate: She broadcast the good news all over town.
to indicate unwittingly to another (one's next action); telegraph: He broadcast his punch and the other man was able to parry it.
verb (used without object),broad·cast or broad·cast·ed,broad·cast·ing.
to transmit programs or signals from a radio or television station.
to make something known widely; disseminate something.
to speak, perform, sponsor, or present all or part of a radio or television program: The Boston Symphony Orchestra broadcasts every Saturday on our local station.
noun
something that is broadcast.
a single radio or television program.
the broadcasting of radio or television messages, speeches, etc.
1767, adjective, in reference to the spreading of seed, from broad (adj.) + past participle of cast (v.). Figurative use is recorded from 1785. Modern media use began with radio (1922, adjective and noun). As a verb, recorded from 1813 in an agricultural sense, 1829 in a figurative sense, 1921 in reference to radio.
