Idioms

on one's toes
alert
The teacher asks the students many questions to keep them on their toes.

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  • on order
  • on par with (someone or something)
  • on pins and needles
  • on probation
  • on purpose
  • on sale
  • on schedule
  • on second thought
  • on shaky ground
  • on speaking terms with (someone)
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  • on land
  • the plot thickens
  • have one's hands full with (someone or something)
  • play (someone) for (something)
  • incumbent upon (someone) to (do something)
  • settle for (something)
  • up the creek with no paddle
  • mix up (something) or mix (something) up
  • Get lost!
  • keep (someone) in stitches


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    is a type of hydrometer used to determine the concentration of salt solutions by measuring their densities.      .. More >>
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