American English

Definition of come on phrasal verb from the Oxford Advanced American Dictionary

 

come on

 phrasal verb
phrasal verb
 
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Phrasal Verbs
  1. 1(of an actor) to walk onto the stage
  2. 2(of a player) to join a team during a game Owen came on for Brown ten minutes before the end of the game.
  3. 3to improve or develop in the way you want The project is coming on fine.
  4. 4 used in orders to tell someone to hurry or to try harder Come on! We don't have much time. Come on! Try it again.
  5. 5used to show that you know what someone has said is not correct Oh, come on—you know that isn't true!
  6. 6 (usually used in the progressive tenses) (of an illness or a mood) to begin I can feel a cold coming on. I think there's rain coming on.
  7. 7(of a TV program, etc.) to start What time does the news come on?
  8. 8 to begin to operate Set the oven to come on at six. When does the heat come on?
See the Oxford Advanced Learner's Dictionary entry: come on