ジッヘルじっへるMeanings1nounbelayingClimbing term borrowed from German 'Sicherung'. Refers to the act of belaying or the belay system.from German SicherungSee also: ビレークライミングでは、ジッヘルが安あん全ぜんの要かなめだ。In climbing, belaying is the key to safety.