挂号

1. register (at a hospital, etc.)

♦ 请排队~。 Please queue (or line) up to register.

♦ 你挂的是几号？ What's your registration number?

2. send by registered mail

♦ 你这封信要不要~？ Do you want to have this letter registered?

~处 registration office~费 registration fee~信 registered letter (or mail)