double-lock

American  

[duhb-uhl-lok] / ˈdʌb əlˈlɒk /

verb (used with object)

1. to lock with two turns of a key, so that a second bolt is engaged.

2. to fasten with particular care.

---

Etymology

Origin of double-lock

First recorded in 1585–95

Example Sentences

See Examples For:

double-lock

"Anyone could have stolen my notebook; I didn't double-lock my door that day."

From "The Westing Game" by Ellen Raskin

For the convenience of his transportation, the serf had left it half open, only taking the precaution to close and double-lock the door of the grand staircase.

From The Lock and Key Library The most interesting stories of all nations: French novels by Julian Hawthorne

And when the devil, who was standing near, heard, he said: "Good God! bar the gates and double-lock them for if this Billy Duffy the blacksmith gets in he will ruin us all."

From Welsh Fairy-Tales and Other Stories by P. H. Emerson

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

From Manual of Military Training Second, Revised Edition by James A. (James Alfred) Moss

Then he left the closet, taking care to double-lock the door.

From The Exploits of Juve Being the Second of the Series of the "Fantômas" Detective Tales by Émile Souvestre