noun top-up an amount added to something in order to raise it to or maintain it at a desired level.

Similarly, what does it mean to top up your phone? noun. a card bought by a mobile phone user entitling him or her to a stipulated amount of credit for future calls.

Also to know, what is the meaning of top up recharge?

Key Difference: Top-up is a way to replenish a prepaid mobile account without extending the validity period, whereas recharge is a way to replenish a prepaid mobile account with the extension of validity period.

What is a top up phone?

A prepaid mobile device (also commonly referred to as pay-as-you-go (PAYG), pay-as-you-talk, pay and go, go-phone or prepay) is a mobile device such as a phone for which credit is purchased in advance of service use. Users can top up their credit at any time using a variety of payment mechanisms.