龙头老大

big boss
leader of a group
dominant (position)

六月, 溜走, 隆, 砻, 茏, 栊, 泷, 癃, 聋, 笼, 珑, 胧, 咙, 窿, 龙, 隆冬, 龙飞凤舞, 龙骨, 隆隆, 龙头, 龙虾, 隆重, 垄, 拢, 陇, 垄断, 垄断贩卖, 笼统, 笼罩, 弄, 搂, 蒌, 耧, 娄, 喽, 楼, 蝼, 髅, 偻, 楼梯,