This is the 17639th most frequent Polish word.
zgłoszeniu
"Zgłoszeniu" means "submission" or "report" in English, depending on context.
Here 'zgłoszeniu' is a noun in the locative case, referring to the act of reporting or notifying something.
Po zgłoszeniu problemu, technik szybko go rozwiązał.
After reporting the problem, the technician quickly resolved it.
In this sentence, 'zgłoszeniu' is a form of the noun 'zgłoszenie', indicating the action of submission or reporting of a new project.
Komisja podjęła decyzję o zgłoszeniu nowego projektu.
The committee decided to submit a new project.
Here, 'zgłoszeniu' is part of the phrase indicating the act of suggesting or reporting an innovative idea.