broadcast (adj.)

1767, "dispersed upon the ground by hand," in reference to seed, from broad (adj.) + past participle of cast (v.). Figurative sense "widely spread" is recorded by 1785. As an adverb from 1832. 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.

Others are reading

Definitions of broadcast from WordNet
broadcast (v.)
broadcast over the airwaves, as in radio or television;
Synonyms: air / send / beam / transmit
broadcast (v.)
sow over a wide area, especially by hand;
broadcast seeds
broadcast (v.)
cause to become widely known;
broadcast the news
Synonyms: circulate / circularize / circularise / distribute / disseminate / propagate / spread / diffuse / disperse / pass around
broadcast (n.)
message that is transmitted by radio or television;
broadcast (n.)
a radio or television show;
Synonyms: program / programme