n.

1. 約束；限制[C][（+on）]
   legal constraints on the company's activities

   對該公司活動法律的限制

2. 強迫；強制[U]
   He acted under constraint.

   他被迫採取行動。

3. 抑制；拘束；態度不自然[U]
   She showed constraint in the presence of the strangers.

   她在陌生人面前顯得很拘束。

4. 拘禁[U]
5. 拘束（或限制）的事物[C]

n.

1. a limitation or restriction.
2. stiffness of manner and inhibition.