"refill" in the noun sense
a prescription drug that is provided again
"he got a refill of his prescription"
"the prescription specified only one refill"
a commercial product that refills a container with its appropriate contents
"he got a refill for his ball-point pen"
"he got a refill for his notebook"
"refill" in the verb sense
1. replenish, refill, fill again
fill something that had previously been emptied
"refill my glass, please"
Source: WordNet® (An amazing lexical database of English)
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