This is the 16289th most frequent Polish word.
uszczelnienie
"Uszczelnienie" means "seal" or "sealing" in English.
The noun 'uszczelnienie' here refers to a physical seal or gasket used to prevent leakage.
Uszczelnienie w rurze wymaga naprawy.
The seal in the pipe requires repair.
The noun 'uszczelnienie' indicates an action or process of sealing something to make it watertight or airtight.
Technicy pracują nad uszczelnieniem systemu hydraulicznego.
The technicians are working on sealing the hydraulic system.
In this figurative usage, 'uszczelnienie' refers to tightening or securing finances against loss or unauthorized use.