As: The Role of - 〜役

We often use "as" to express someone's job or role.

  • I work as a teacher
  • She works as a dentist
  • He plays as a striker in a soccer team

We also use "as" to express something's purpose.
Here are some examples:

  • I use a mug as a pen stand

  • I use paperclips as cable holders

How about you, what do you use?