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Synonyms

backstop

American  
[bak-stop] / ˈbækˌstɒp /

noun

  1. a wall, wire screen, or the like, serving to prevent a ball from going too far beyond the normal playing area.

  2. Baseball. the catcher.

  3. a person or thing that serves as a support, safeguard, or reinforcement.

    There were technicians on board as backstops to the automated controls.


verb (used without object)

backstopped, backstopping
  1. to act as a backstop.

verb (used with object)

backstopped, backstopping
  1. to act as a backstop to.

    The government agreed to backstop companies that invested in oil exploration.

backstop British  
/ ˈbækˌstɒp /

noun

  1. sport a screen or fence to prevent balls leaving the playing area

  2. a block or catch to prevent excessive backward movement, such as one on the sliding seat of a rowing boat

"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

verb

  1. to provide with backing or support

"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

Other Word Forms

Etymology

Origin of backstop

First recorded in 1810–20; back 1 + stop

Explanation

In baseball, a backstop is the wall or fence behind home plate that keeps the ball on the playing field. If the batter hits the ball into the backstop, it's a foul ball. When a softball player is up at bat, the backstop is behind her. Part of the backstop's purpose is to keep players and spectators from getting hurt by foul balls or bats that players toss after hitting the ball. You can also use the word backstop to describe a thing or a person that stands behind something, offering reinforcement or support. The earliest use of the word, in 1819, is from cricket.

Keep Reading on Vocabulary.com

Vocabulary lists containing backstop

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.

See Examples For:

AMD is also in talks to provide a financial backstop for Anthropic’s future data-center leases as well, according to a person with direct knowledge of the talks.

From The Wall Street Journal Jul. 22, 2026

At first, it was marketed as a narrow backstop to prosecute the gravest crimes.

From The Wall Street Journal Jul. 13, 2026

“I do think the U.S. government will backstop some of these companies in a dire situation, perhaps in exchange or equity,” Wallerstein said.

From MarketWatch Jul. 11, 2026

“I do think the U.S. government will backstop some of these companies in a dire situation, perhaps in exchange for equity,” Wallerstein said.

From MarketWatch Jul. 11, 2026

Another new ball from behind the backstop and Willis roughing it up again.

From "Lizzie Bright and the Buckminster Boy" by Gary D. Schmidt

California backstopped the federal subsidies for the lowest-income enrollees — mostly those for households earning up to 150% of the federal poverty level, or $23,940 for individuals and $49,500 for a family of four.

From Los Angeles Times May 28, 2026

The company said the deal would be backstopped by the Ellison family and RedBird Capital, and debt fully committed by Bank of America, Citi, and Apollo.

From Barron's Dec. 8, 2025

Multiple Democratic- and Republican-run states, as well as Native American tribes, declared emergencies and backstopped tens of millions of dollars for food payments, while acknowledging that that still wouldn’t suffice.

From Slate Nov. 6, 2025

Mass manufacturing backstopped American primacy in the 20th century; the U.S. outbuilt and outinnovated its totalitarian foes.

From The Wall Street Journal Oct. 17, 2025

He backstopped the Kraken’s best run of the season, the only reason they were still in playoff contention.

From Seattle Times Apr. 20, 2024

Warner’s board told shareholders to reject Paramount’s bid last week, citing concerns that the Ellisons weren’t fully backstopping the financing.

From Barron's Dec. 22, 2025

In recent calls with U.S. officials, European officials have stressed that they can only offer Ukraine clear security commitments once they know what role the U.S. would play in backstopping those plans.

From The Wall Street Journal Dec. 4, 2025

How the U.S. government is backstopping the tech boom.

From MarketWatch Nov. 14, 2025

The settlement resolved a dispute over the amount of new stock that Cineworld's lenders would receive for backstopping the exit financing.

From Reuters May 2, 2023

"I'll let that do most of the backstopping."

From Rival Pitchers of Oakdale by Scott, Morgan

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