sign-off

[sahyn-awf, -of] /ˈsaɪnˌɔf, -ˌɒf/
noun
1.
the act or fact of signing off.
2.
personal approval or authorization; endorsement.
Also, signoff.
Origin
1925-30; noun use of verb phrase sign off
Contemporary definitions for signoff
noun

the act of announcing the end of a broadcast or similar event; also written sign-off

noun

See signoff