vt.

1. 結束[（+by/with）]
   We concluded our meeting at 9 o'clock.

   我們九點鐘結束了會議。

2. 推斷出，斷定[W][Y][+that]
   What can you conclude from these observations?

   你從這些觀察中能得出什麼結論？

3. 締結（條約）[（+with）]
4. （最後）決定（為）[+to-v][+that]
   He concluded that he would wait a little longer.

   他決定再等一會兒。

   He concluded to quit on pay day.

   他決定在發薪水這天辭職。

vi.

1. 結束，終了[（+with）]
   The meeting concluded after two hours.

   兩小時後會議結束了。

2. 斷定
3. 達成協議
4. 作出（最後）決定

v.

1. bring or come to an end.
   ▸formally settle or arrange (an agreement).
2. arrive at a judgement or opinion by reasoning.