rein

n.

1. 韁繩[C][P1]
   Pull on the right rein and the horse will turn to the right.

   一拉右韁，馬就會向右轉。

2. 駕馭，控制，統治[P1]
   Few kings now hold the reins of government.

   現在很少有國王是掌握政權的。