n.

1. 缺点，毛病，缺陷[C]
   Every man has his faults.

   金无足赤，人无完人。

2. 错误[C]
   The teacher found many faults in spelling and grammar in my composition.

   老师在我作文中发现许多拼写和语法错误。

3. （过失的）责任，咎[U]
   The fault is entirely mine.

   责任全在于我。

   It's no fault of hers.

   这不是她的过错。

4. 【地】断层[C]
5. 故障；误差[C]
6. （网球等）发球失误[C]

vt.

1. （通常用于疑问句或否定句）对……挑毛病；找……的缺点
   It was impossible to fault her performance.

   她的演出无懈可击。

vi.

1. 弄错，出差错
2. 【地】产生断层

n.

1. an unattractive or unsatisfactory feature; a defect or mistake.
   ▸(in tennis and similar games) a service of the ball not in accordance with the rules.
2. responsibility for an accident or misfortune.
3. Geology  an extended break in a rock formation, marked by the relative displacement and discontinuity of strata.

v.

1. criticize for inadequacy or mistakes.
   ▸archaic do wrong.
2. (be faulted) Geology  be broken by a fault or faults.