a lock having a spring bolt moved by a knob or knobs, and a dead bolt moved by a key.
What’s Nuclear About A Football?Whose nuclear launch button is bigger? There has been a serious kerfuffle in the news about buttons and their relative size. Specifically, nuclear launch buttons. Kim Jong-un, the leader of North Korea, flatly stated that a nuclear button is on his desk at all times. “It’s not a mere threat but a reality that I have a nuclear button on the desk in my office.” …
Groundhog Day Or Groundhog’s Day: What’s The Holiday Really Called?Every year, February 2 marks Groundhog Day. While the frost is still thick on the ground in some places of the country, spring may be on the way. But, why is this holiday not called Groundhogs Day or even Groundhog’s Day? Groundhog Day seems pretty strange … Why is it called Groundhog Day? Well, let’s start with why it’s not called Groundhogs Day, OK? It’s simple really … the …
Origin of knob lock
First recorded in 1805–15
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019