double-lock
[duhb-uh l-lok]
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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
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for double-lock
Historical Examples of double-lock
Then he left the closet, taking care to double-lock the door.
The Exploits of JuvePierre 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 NabobMaurus Jkai
You will be at liberty to double-lock my study door; you can go to sleep without the slightest fear.
My Neighbor Raymond (Novels of Paul de Kock Volume XI)Charles Paul de Kock
The single-lock and double-lock bridges with two and three spans of 15 ft., respectively, are the ones of most utility.
Manual of Military TrainingJames A. Moss
I got up, with a shiver, to shut and double-lock it; then I made for the alcove, and went to bed in haste.
An "Attic" Philosopher, CompleteEmile Souvestre