backup signal

noun

Word History

First Known Use

1925, in the meaning defined above

Time Traveler
The first known use of backup signal was in 1925

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Dictionary Entries Near backup signal

Cite this Entry

“Backup signal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/backup%20signal. Accessed 3 Dec. 2024.

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