saddle/ 'sædl /

1.noun [c] 
(for horse) 马鞍

2.noun
(on bike,motorbike) 车座

3.vt.
(also: saddle up) 给…装鞍

4.vt.
to saddle sb with sth 使某人承担某项责任

in the saddle
骑着马
5.vt.
(in control) 掌权