手て旗ばた信しん号ごうてばたしんごうMeanings1nounflag signaling; semaphoreRefers to the system of conveying information using hand flags, often associated with maritime or scouting contexts.ボーイスカウトで手て旗ばた信しん号ごうを習ならった。I learned flag signaling in the Boy Scouts.
