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[duhb-uh l-lok] /ˈdʌb əlˈlɒk/
verb (used with object)
to lock with two turns of a key, so that a second bolt is engaged.
to fasten with particular care.
Origin of double-lock
First recorded in 1585-95 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for double-lock
Historical Examples
  • Then he left the closet, taking care to double-lock the door.

    The Exploits of Juve

    Pierre Souvestre and Marcel Allain
  • And with that she blew him a kiss from the threshold of her bedroom, and Rudolf heard her double-lock the door behind her.

    A Hungarian Nabob Maurus Jkai
  • You will be at liberty to double-lock my study door; you can go to sleep without the slightest fear.

  • The single-lock and double-lock bridges with two and three spans of 15 ft., respectively, are the ones of most utility.

  • I got up, with a shiver, to shut and double-lock it; then I made for the alcove, and went to bed in haste.

  • Detachments of the national guards had to repair immediately to each gate and double-lock it.

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