Answer: wigwags

AnswerCrossword Clue
WIGWAGSSignals at sea
WIGWAGSMoves to and fro
wigwagsmessage so signaled
wigwagsthe act or process of sending messages by the movements of two flags or the like waved according to a code
wigwagsto move to and fro
wigwagsWIGWAG, to twist about
wigwagsto signal by movements of two flags or the like waved according to a code