• canary in the coal mine - definition-of

    canary in the coal mine - someone or something used to indicate when a situation might be turning dangerous; derived from when coal miners would take a canary down ...

  • canary in a coal mine - Wiktionary

    Dec 02, 2017· Alternative forms . canary in the coal mine; Etymology . An allusion to caged canaries (birds) that miners would carry down into the mine tunnels with them.

  • Mine - Idioms by The Free Dictionary

    Definition of mine in the Idioms Dictionary. mine ... Mine - Idioms by The Free Dictionary. ... John was used as a canary in a coal mine to see its effects on the ...

  • Canary in the coalmine - Grammarist

    Canary in the coalmine . ... Every now and then the canary in the coal mine does indeed die — it would be kind of foolish to blithely wave away this particular ...