This is the 17014th most frequent Polish word.
wysłania
"Sending" or "dispatching."
Here, "wysłania" is used to indicate the action of sending in a noun form (genitive case), referring to the dispatching of a package.
Potrzebuję potwierdzenia wysłania przesyłki.
I need confirmation of the package being sent.
In this sentence, "wysłania" refers to the act of sending documents and is governed by the preceding noun phrase "możliwość".
Czekam na możliwość wysłania dokumentów.
I am waiting for the opportunity to send the documents.
Here, "wysłania" is used in the context of submitting (sending) an application and serves as a noun to represent the act involved.