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prevents

VERB

keep from happening or continuing

Synonyms

STRONGEST

avert avoid bar block counter forbid forestall halt hamper hinder impede inhibit limit preclude prohibit put an end to restrain restrict rule out stop thwart ward off

STRONG

anticipate arrest baffle balk check chill cool cork counteract dam debar foil forfend frustrate intercept interdict interrupt obstruct obviate repress retard

WEAK

defend against head off hold back hold off keep lid on nip in the bud put a stop to shut out stave off turn aside

Antonyms

STRONGEST

advance aid allow approve assist continue encourage facilitate forward free help let go open permit promote push release support

STRONG

abet heat liberate warm

WEAK

cause

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.

The FTC case is broad, but a key allegation is that Amazon prevents new or smaller marketplaces from gaining a foothold because it stops them from competing on price.

From BBC • May 17, 2026

Though serious, Parsons’ handsomeness prevents him from looking stereotypically nerdy.

From Los Angeles Times • May 14, 2026

Aspirin prevents heart attacks, and good policy could give other generic drugs a second life.

From The Wall Street Journal • May 13, 2026

Instead of poisoning termites in a broad, fast acting way, it prevents them from making the chitin they need for their next protective shell.

From Science Daily • May 9, 2026

Similarly, confinement prevents one having a single gluon on its own, because gluons also have color.

From "A Brief History of Time: And Other Essays" by Stephen Hawking