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sign-off

or sign·off

[ sahyn-awf, -of ]
/ ˈsaɪnˌɔf, -ˌɒf /
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noun

the act or fact of signing off.
personal approval or authorization; endorsement.

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Origin of sign-off

First recorded in 1925–30; noun use of verb phrase sign off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for sign-off

sign off

verb (adverb)

(intr) to announce the end of a radio or television programme, esp at the end of a day
(intr) bridge to make a conventional bid indicating to one's partner that one wishes the bidding to stop
(tr) to withdraw or retire from (an activity)
(tr) (of a doctor) to declare (someone) unfit for work, because of illness
(intr) British to terminate one's claim to unemployment benefit
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with sign-off

sign off

1

Announce the end of a communication, especially a broadcast. For example, There's no one there now; the station has signed off for the night. [c. 1920]

2

Stop talking, become silent, as in Every time the subject of marriage came up, Harold signed off. [Colloquial; mid-1900s]

3

Express approval formally or conclusively, as in The President got the majority leader to sign off on the tax proposal. This usage is colloquial.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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