Idioms

on active duty
doing full-time service (usually used in the military when someone is doing full-time service)
The soldiers were on active duty when the hurricane reached the shore.

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  • on again, off again
  • on all fours
  • on an even keel
  • on and off
  • on and on
  • on any account
  • on approval
  • on behalf of (someone)
  • on bended knee
  • on board
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  • use every trick in the book
  • What's done is done.
  • had best (do something)
  • in a flash
  • know which side one's bread is buttered on
  • year round
    •
  • take the bitter with the sweet
  • head over heels
  • to a T
  • stand behind (someone or something)


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