Answer: SIGNALS

Possible questions:


Heralds we know 6 Answers
Quarterback's repertoire we know 2 Answers
Turn indicators, e.g. we know 1 Answer
Semaphore user's output we know 1 Answer
Red flags, e.g. we know 1 Answer
Quarterbacks' calls we know 1 Answer
High-low ploys in bridge we know 1 Answer
High-low plays at bridge we know 1 Answer
Bridge stratagems we know 1 Answer

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