n.

1. 原因；起因[C][U][（+of）]
   What was the cause of the accident?

   造成這一事故的原因是什麼？

2. 理由，根據；動機[U][（+for）][+to-v]
   You have no cause to complain.

   你沒有理由抱怨。

3. 目標，理想，事業[C]
   World peace is a cause we should all work for.

   爭取世界和平是一項我們都應該為之而努力的事業。

4. 【律】（訴訟）原因，理由；訴訟[C]

vt.

1. 導致，使發生，引起[O1][O2]
   What caused him to quit his job?

   是什麼原因使他辭職的？

   I'm afraid I'm causing you much trouble.

   我怕給你增添很多麻煩。

n.

1. a person or thing that gives rise to an action, phenomenon, or condition.
   ▸reasonable grounds for a belief or action.
2. a principle or movement which one is prepared to defend or advocate.
   ▸something deserving of support.
3. a matter to be resolved in a court of law.
   ▸an individual's case offered at law.

v.