wedge/ wεʤ /

1.noun [c] 
(under door etc) 三角木

2.noun [of cheese] [ cake etc] 
楔形

3.noun
(tool) 楔子

4.vt.
to wedge sth open/shut 顶住某物使之开着/关着

5.vt.
to wedge sth in sth (push) 将某物楔入某物

to be wedged (in) between
被紧紧地夹在…中间
to drive a wedge between
在…之间挑拨离间