[ duhb-uhl-lok ]

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.

Origin of double-lock

First recorded in 1585–95

Words Nearby double-lock Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use double-lock in a sentence