Definition of "top up" in English

Verb

1. To refill (or recharge) something.

   • I shall top up with petrol before the long trip.
   • Please top up the tank tonight.
   • I shall top up the mobile phone at the supermarket.
   • Users can top up their wallet balance and start sending and receiving money between mobile phones.
   • The waitress topped up my coffee every few minutes.

2. To add to a balance in an account (e.g., mobile payment, debit card, bank account).

   • I shall top up the mobile phone at the supermarket.
   • Users can top up their wallet balance and start sending and receiving money between mobile phones.

3. To refill a drink.

   • The waitress topped up my coffee every few minutes.

4. To add to a number or amount, to bring something up to a certain level.

5. To have sex (with).

   • We had dinner, went back to her place, and started topping up.