Idioms

on probation
serving a period of probation, serving a trial period
The new employee was on probation before he became a regular member of the staff.

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  • on purpose
  • on sale
  • on schedule
  • on second thought
  • on shaky ground
  • on speaking terms with (someone)
  • on standby
  • on target
  • on the air
  • on the alert (for someone or something)
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  • for free
  • kill the goose that lays the golden egg
  • what about
  • tune up (an engine) or tune (an engine) up
  • stall off (someone or something) or stall (someone or something) off
  • narrow-minded
  • toss one's cookies
  • drop a hint
  • in shambles
  • stumbling block


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    Element
    Element : rutherfordium
    Symbol : rf
    Atomic no. : 104
    Melting Point (deg c) :
    Boiling Point (deg c) :
    Discoverer : ghiorso et al. (1969)      .. More >>
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