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Synonyms

backer

American  
[bak-er] / ˈbæk ər /

noun

  1. a person who supports or aids a person, cause, enterprise, etc.

    Synonyms:
    helper, aide, guarantor, sponsor, supporter

  2. a person who bets on a competitor in a race or contest.

  3. canvas or other material used for backing.

backer British  
/ ˈbækə /

noun

  1. a person who gives financial or other support

  2. a person who bets on a competitor or contestant

"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

Etymology

Origin of backer

First recorded in 1535–45; back 1 + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Barclays was a key backer, providing banking services to MFS and some of the funding vehicles.

From The Wall Street Journal • Mar. 6, 2026

The analyst is a particularly ardent backer of Blue Owl, which he initiated at Outperform in 2023.

From Barron's • Mar. 4, 2026

Rep. Wesley Hunt, a latecomer to the race who was an early backer of Trump in 2024, earned 13.5% of the vote and will not advance to the run-off.

From Salon • Mar. 4, 2026

Buffett was a big backer of the Kraft Foods and Heinz merger in 2015.

From MarketWatch • Feb. 28, 2026

I acted in the capacity of backer, or best-man, to the bridegroom; while a little limp pew-opener in a soft bonnet like a baby’s, made a feint of being the bosom friend of Miss Skiffins.

From "Great Expectations" by Charles Dickens

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.