To rebroadcast something is to make it available again on the radio, television, or online. During a weather emergency, like a hurricane, local TV stations usually rebroadcast news reports throughout the day.

Use rebroadcast as a verb, meaning "play again," or a noun, for the actual show or program. You might miss an exciting basketball game, but you'll probably be able to watch a rebroadcast the next day. The word rebroadcast combines the "again" prefix re- and broadcast, which started out with a very different definition — it meant "spread seeds." The modern meaning dates from the 1920s, when it referred to radio.

Definitions of rebroadcast
  1. verb
    broadcast again, as of a film
    synonyms: rerun
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    type of:
    air, beam, broadcast, send, transmit
    broadcast over the airwaves, as in radio or television
  2. noun
    a broadcast that repeated at a later time
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    type of:
    message that is transmitted by radio or television
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