Used to ask someone to repeat something
Used to make an appeal to the umpire as to whether the batsman is out or not
Used other than figuratively or idiomatically: see how, is, that.
"What did you say?" or "Repeat what you have said." A polite formula used when one has not heard or understood what has been said.
To repeat part of or entire message transmitted over the radio, used instead of "repeat" which is an artillery procedure word.