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I am a native English speaker and never heard the word "semaphore" until taking CS classes in college. I cannot think of a common use for the term, unlike flag (see them all the time), register (do that with cars and schools) or stack (lots of those in my kitchen).


> register (do that with cars and schools)

I would think computer register comes from the noun, not the verb — think cash register, not to register a car.


I agree, I was just trying to think of how the word "register" comes up in casual conversation.

I cannot think of a way that "semaphore" would come up in non-nerd conversation at all.


Or the covering of an air vent in a house.




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