Definition of double-check in English:

double-check

Syllabification: dou·ble-check

verb

[with object]
  • Go over (something) for a second time to ensure that it is accurate or safe: he double-checked our credentials [with clause]: double-check that all windows are firmly locked
    More example sentences
    • They are, in reality, the second opinion that can double-check the records of those most at risk, to ensure their safety.
    • Everyone has checked and double-checked their tickets, but the grapevine is eerily quiet.
    • Lotto operator Camelot is now urging all National Lottery players in the Doncaster area to check and double-check their old tickets very carefully.

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Pronunciation: meɪdʒ
noun
a magician or learned person