Combination lock Meaning, Definition & Usage

  1. noun lock that can be opened only by turning dials in a special sequence

WordNet


Definitions
  1. a lock in which the mechanism is controlled by means of a movable dial (sometimes by several dials or rings) inscribed with letters or other characters. The bolt of the lock can not be operated until after the dial has been so turned as to combine the characters in a certain order or succession.

Webster 1913