System of signalling with the arms Crossword Clue

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Please find today's clue from the given publisher "Irish Times Simplex".
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Definition of "SEMAPHORE"

a system of sending messages by holding the arms or two flags or poles in certain positions according to an alphabetic code

Example :

if you learn semaphore or the Morse code, you'll have a fun way to send messages

the room was long enough to need a semaphore to signal from one end to the other

I saw Edward jumping up and down, performing an elaborate semaphore with his hat

 The Crossword clue "System of signalling with the arms" published 7 time/s & has 1 answer/s. 

Crossword	Date	Answer
Irish Times Simplex	7 November 2020	SEMAPHORE