n.

1. 使用，用法；處理，對待[U][（+of）]
   The TV set was damaged from rough usage.

   這架電視機由於使用太不小心而損壞了。

   He is totally ignorant of social usage.

   他對社會習俗一無所知。

2. 習慣，習俗[C][U]
   "Do you have it?" is a common American usage, but it would be more likely for British speakers to say "Have you got it?"

   "Do you have it?" 是慣用的美語用法，而英國人很可能說"Have you got it?"。

3. 【文】慣用法；文法[C][U]
   This is a book on modern English usage.

   這是一本關於現代英語慣用法的書。

n.

1. the action of using something or the fact of being used.
2. habitual or customary practice.
3. the way in which a word or phrase is normally and correctly used.