refill

Short definition from Wiktionary

Noun

1. 1
   That which serves to refill or replace something: An additional helping of food or drink at reduced cost.
2. 2
   That which serves to refill or replace something: Refuelling, fuel to refill an empty fuel tank (of a vehicle or machine) or other fuel container.
3. 3
   That which serves to refill or replace something: A product intended to replace the used contents of a container or the exhausted supply of a device.
4. 4
   That which serves to refill or replace something: A repeat of a prescription.
5. 5
   An act or process of refilling.

Verb

1. 1
   To fill up once again.
2. 2
   To repeat a prescription.