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Definition of backstop

backstop

/ˈbæk.stɑːp/
back · stop

Plural:backstops
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Past Simple:backstopped
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Past Participle:backstopped
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Present Participle:backstopping
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backstop Lexical Profile

backstop Game Scores & Validity

• noun

1

An emergency precaution, last-resort support, or financial guarantee that prevents a system, agreement, or venture from failing if primary measures prove inadequate.

Example

"The central bank acted as a financial backstop to stabilize the credit markets during the downturn."


2

A screen, fence, or barrier placed behind the home plate in baseball or softball, or at the end of a playing field or shooting range, to stop balls or projectiles from going too far.

Example

"The foul ball sailed over the catcher's head and rattled loudly against the wire backstop."


3

North American In baseball and softball, the player positioned behind home plate who catches pitches not hit by the batter; a catcher.

Example

"The veteran backstop guided the young pitching staff through a challenging nine-inning game."

Synonyms
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• verb

1

To support, bolster, or provide a last-resort guarantee or security for a plan, organization, or financial offering.

Example

"The treasury agreed to backstop the municipal bond issue so that local infrastructure repairs could proceed."

Synonyms
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Word Origin & Etymology

Coined in mid-19th-century American English from the roots 'back' and 'stop', originally referring to the barrier behind the catcher in baseball before broadening in the 20th century to mean a financial or political safeguard.

Cite this Entry


Wordmom. (2026). Definition of Backstop. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/backstop
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