tap; faucet; the valve used to control the flow of water or other liquids
chief
the boss of a gang or secret society; a leader of a group; the head of a queue
handlebar
bicycle handlebar
dragon head
the head of a dragon, such as the figurehead on the prow of a 龙船lóngchuán
top scholar
(archaic) a name used to refer to the person who ranked first in the imperial examinations
leading enterprise
a front-runner or flagship company in an industry; a dominant product or entity
Hua Xin
(historical) a nickname for the scholar Hua Xin, who was referred to as the dragon's head among a trio of talented friends during the Three Kingdoms period