signoff

noun
UK /ˈsaɪn.ɒf/
US /ˈsaɪn.ɑːf/

A signoff is when someone says a final goodbye or gives official approval to end something.

The radio host gave a friendly signoff before the music started.


OTHER MEANINGS

2. The act of officially approving or authorizing something, like a project or document.

The manager's signoff was needed before the plan could begin.

3. A final message or closing remark at the end of a broadcast or letter.

She ended the letter with a warm signoff.

4. The process of formally ending a work session or shift.

Don't forget your signoff before you leave the office.