Lukkumise

Lukkumise is an Estonian noun that denotes the act or process of locking or sealing a mechanism or space. The word is formed from lukk (lock) and the verb lukustama (to lock), with the suffix -mine creating a nominalization. The genitive form lukkumise is used in phrases such as lukkumise protsess (the locking process).

In general usage, lukkumise refers to the engagement of a locking mechanism or the resulting secured state, for example when a door, hatch, container, or other enclosure is locked. It can apply to both mechanical operations and security procedures.

Lukkumise is related to lukustamine (the act of securing by locking) and lukustuma (to become locked). The basic noun lukk means a lock, while luku refers to the lock itself in some contexts. The terms are often used in technical, safety, and formal writing to describe the action and outcome of locking.

Usage notes: lukkumise appears primarily in technical or formal contexts. In everyday language, speakers may prefer expressions built on lukustamine or lukustuma to describe locking actions, or use the noun lukk to refer to the object that provides security.