olemus
Wiktionary:
1. an event or occurrence that signifies an ending
7. the act of shutting; a closing
8. the act of shutting or closing something permanently or temporarily .

näiteid
closure of accounts -- kontode sulgemine
closure of a debate -- vaidluste lõpetamine
closure of foreign branch -- välisfiliaali sulgemine
closure of personal data -- isikuandmete sulgemine
closure of the preparatory inquiry -- uurimistoimingu lõpetamine
closure valve -- sulgeventiil

vt ka
- lõpetamine (1)
- sulgemine (2)