1.
to close tightly, to shut completely
To close doors, windows, etc. completely to seal off a space.
窓を締め切って冷房をつけた。
I closed all the windows and turned on the AC.
2.
to set a deadline, to close (applications)
To establish a final date for accepting applications, submissions, etc.
応募は明日締め切ります。
Applications close tomorrow.
締め切りに間に合わなかった。
I didn't make the deadline.
締め切り is the noun form
締め切る is a compound godan verb with two distinct meanings.
TRANSITIVITY:
- Type: 他動詞 (transitive)
- Takes を particle: 〜を締め切る
COMPOUND STRUCTURE:
締める (to close) + 切る (completely). The 切る suffix indicates thoroughness.
COMMON PATTERNS:
- 窓を締め切る: to close all windows
- 応募を締め切る: to close applications
- 受付を締め切る: to close registration
RELATED NOUN:
締め切り: deadline
- 締め切りに間に合う: to meet the deadline
- 締め切りを守る: to keep the deadline
- 締め切り日: deadline date