Answer: wigwag

AnswerCrossword Clue
WIGWAGSignal by flapping
WIGWAGMove to and fro
WIGWAGArt of semaphore.
WIGWAGNavy communication system.
WIGWAGSignal with flags.
WIGWAGSignal code.
WIGWAGFlag-signal motion
WIGWAGSend a signal by waving a flag
wigwagto move to and fro
wigwagto twist about
wigwagthe act or process of sending messages by the movements of two flags or the like waved according to a code
wigwagto signal by movements of two flags or the like waved according to a code
wigwagmessage so signaled