SEMAPHORES

Scrabble 17 Words With Friends 18

Scrabble letter values: S₁E₁M₃A₁P₃H₄O₁R₁E₁S₁ = 17

Definition

SEMAPHORES is the plural of SEMAPHORE.

noun SEMAPHORE: an apparatus for visual signaling with lights or mechanically moving arms.

“The thread increments the semaphore to prevent other threads from entering the critical section at the same time.”