top-up
noun /ˈtɒp ʌp/
/ˈtɑːp ʌp/
(British English)- a payment that you make to increase the amount of money, etc. to the level that is needed
- a phone top-up (= to buy more time for calls)
- Students will have to pay top-up fees (= fees that are above the basic level).
- (informal) an amount of a drink that you add to a cup or glass in order to fill it again
- Can I give anyone a top-up?