This is the 458th most frequent Russian word.
получения
"Receiving" or "obtaining."
In this context, 'получения' functions as part of the phrase 'после получения', meaning 'after receiving', where it represents the completion of acquiring the diploma.
После получения диплома он начал работать в компании.
After receiving his diploma, he started working at a company.
Here, 'получения' is part of the phrase 'процесс получения', meaning 'the process of obtaining', describing the action or method of acquiring information.
Процесс получения информации стал быстрее благодаря интернету.
The process of obtaining information has become faster thanks to the internet.
Here, 'получения' is used in a genitive case construction as part of a noun phrase 'для получения', meaning 'for obtaining' or 'to obtain', referring to the action necessary for obtaining a visa.