fault/ fɔːlt /

1.noun [s] 
(mistake) 错误

2.noun [c] 
(defect) (in person) 缺点

3.noun
(in machine) 故障

4.noun [c] [地理] 
(crack) 断层

5.noun [c] [Tennis] 
失误

6.vt.
(criticize) 挑剔

it's my fault
是我的错
at fault
有责任
to find fault with sb/sth
找某人/某事的错
through no fault of one's own
不是自身的过失
generous/modest to a fault
过分慷慨/谦虚