The clue "Go-ahead signal" last appeared in the Eugene Sheffer King Feature Syndicate crossword on July 20, 2017. The correct answer for this puzzle is "GREENLIGHT", a 10-letter word.
Solution GREENLIGHT is our most searched for solution by our visitors. Solution GREENLIGHT is 10 letters long. We have 0 further solutions of the same word length.
There are 2 solutions. The longest is GREENLIGHT with 10 letters, and the shortest is NOD with 3 letters.
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Solutions are between 3 and 10 letters long.