1) 嚆矢こうし #82,503 Link copied! こうし [1] Meaning Shirabe ① Noun whistling arrow used to signal the start of battle See also: 鏑矢 (かぶらや) ② Noun start (e.g. of a movement); beginning; dawn Kanji 嚆 コウ call 矢 シ dart, arrow Forms 嚆矢#82,503嚆矢こうしこうしこうし