This is the 16075th most frequent Polish word.
ubiegania
"Ubiegania" means "seeking" or "pursuit" in English.
In this sentence, 'ubiegania' refers to the act of applying itself, framed as a noun describing the overall process.
Proces ubiegania się o wizę wymaga dokładnego przygotowania.
The process of applying for a visa requires thorough preparation.
Here, 'ubiegając' is used in a participial construction, linked to the act of applying for a job.
Ubiegając się o pracę, warto przygotować dobre CV.
When applying for a job, it's worth preparing a good resume.
In this instance, 'ubiegania się' functions as a noun phrase indicating the specific act of application.