failure/'feɪljər/

1.noun [c/u] 
(lack of success) 失败

2.noun [c] 
(person) 废物

3.noun [c/u] 
(mechanical,electrical) 故障

4.noun [c/u] [of crops] 
歉收

failure to do sth
没有做某事
heart/kidney failure
心力/肾衰竭
it was a (complete) failure
那是个(彻底的)失败