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backer-up

American  
[bak-er-uhp] / ˈbæk ərˈʌp /

noun

plural

backers-up

  1. a supporter; backer; second.

  2. Football. a linebacker.

Etymology

Origin of backer-up

1920–25; back up + -er 1

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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