Meaning of BROADCAST in English
/ ˈbrɔːdkɑːst; NAmE -kæst/ verb , noun
■ verb ( broad·cast , broad·cast )
to send out programmes on television or radio :
[ vn ]
The concert will be broadcast live (= at the same time as it takes place) tomorrow evening.
[ v ]
They began broadcasting in 1922.
[ vn ] to tell a lot of people about sth :
I don't like to broadcast the fact that my father owns the company.
a radio or television programme :
( BrE )
a party political broadcast (= for example, before an election)
We watched a live broadcast of the speech (= one shown at the same time as the speech was made) .
mid 18th cent. (in the sense sown by scattering ): from broad + the past participle of cast throw . Senses relating to radio and television date from the early 20th cent.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005