think twice

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think twice (third-person singular simple present thinks twice, present participle thinking twice, simple past and past participle thought twice)

1. (idiomatic) To reconsider, use judgement; to proceed with caution or thought.

   Think twice before you go, since it could be dangerous.

   • 1962, Bob Dylan, Don't Think Twice, It's All Right:

     When your rooster crows at the break o' dawn
     Look out your windo' and I'll be gone
     You're the reason I'm a travelin' on
     But don't think twice, it's all right.