Master Key

Master keying

A master key operates a set of several locks. Usually, there is nothing different about the key. The differences are in the locks the key will operate. These master-keyed locks are configured to operate with two, or more, different keys: one specific to each lock, which cannot operate any of the others in the set, and the master key, which operates all the locks in the set. Locks that have master keys have a second set of the mechanism used to operate them that is identical to all of the others in the set of locks. For example, master keyed pin tumbler locks often have two shear points at each pin position, one for the change key and one for the master key. A far more secure system has two cylinders in each lock, one for the change key and one for the master key.

List of The Price Is Right pricing games

Pricing games are featured on the current version of the American game show The Price Is Right. The contestant from Contestants' Row who bids closest to the price of a prize without going over wins the prize and has the chance to win additional prizes or cash in an onstage game. After the pricing game ends, a new contestant is selected for Contestants' Row and the process is repeated. Six pricing games are played on each hour-long episode. Prior to expanding to one hour in length, three games per episode were played during the half-hour format.

Master Key (TV program)

Master Key is a South Korean variety show that aired on SBS every Saturday at 18:10 (KST) from October 14, 2017 to January 6, 2018.

master key

Noun

1. A key designed to open a set of several locks; a passkey.
2. Any tool or technique that can solve many types of difficulty.