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Definition of breach

breach

/bɹiːtʃ/
breach

Plural:breaches
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Past Simple:breached
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Past Participle:breached
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Present Participle:breaching
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breach Lexical Profile

breach Game Scores & Validity

• noun

1

An act of breaking or failing to observe a law, agreement, or code of conduct.

Example

"Sharing confidential client information with a third party constitutes a serious breach of contract."


2

A gap or opening made in a wall, barrier, or defensive system, including unauthorized access to a digital network.

Example

"The cybersecurity team worked through the night to contain the data breach and secure user passwords."


3

A disruption or breakdown in friendly relations between people or groups.

Example

"Years of open dialogue finally healed the bitter breach between the two neighboring communities."


4

A leap by a whale or other marine mammal out of the water.

Example

"The passengers on the boat gasped in awe at the humpback whale's sudden breach near the bow."

Synonyms
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Antonyms
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• verb

1

To break or fail to observe a law, agreement, or code of conduct.

Example

"The regulatory board fined the corporation after it breached environmental safety standards."


2

To make a gap in and break through a wall, barrier, or defensive system.

Example

"Floodwaters surged after the swollen river breached the earthen levee during the storm."


3

To rise and break through the surface of the water (especially of a whale or other marine mammal).

Example

"We watched from the shoreline as several humpback whales breached in the bay."

Synonyms
View all synonyms for breach
Antonyms
View all antonyms for breach

Word Nuance & Usage

Do not confuse 'breach' with its homophone 'breech'; 'breach' refers to a violation of a rule or an opening in a barrier, whereas 'breech' refers to the rear part of a gun barrel or a fetus positioned feet-first in the womb.

• Rhymes for breach

Word Origin & Etymology

From Middle English breche, merging Old English brǣc ('a breaking, fracture') and Old French breche ('a gap or break'), both ultimately derived from the Proto-Germanic root *brekaną ('to break').

Cite this Entry


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