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Definition of loophole
loophole
/ˈluːpˌhoʊl/
loop · hole
Plural:loopholes
loophole Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Top 10k
loophole Game Scores & Validity
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• noun
1
An ambiguity, omission, or inadequacy in a law, contract, or set of rules that allows someone to evade an obligation, restriction, or penalty.
Example
"The corporation hired a team of clever accountants to find a tax loophole and legally save millions of dollars."
2
A narrow vertical slit or small opening in a wall or fortification through which weapons can be fired or light and air admitted.
Example
"The medieval castle's thick stone walls were pierced by narrow loopholes, allowing archers to safely defend the courtyard from attackers."
Synonyms
View all synonyms for loopholeWord Origin & Etymology
Late 16th century: from 'loop' (in the older, specialized sense of a narrow slit or window in a wall) + 'hole'. The metaphorical sense of an ambiguity providing a means of escape or evasion emerged in the 1660s.
Cite this Entry
Wordmom. (2026). Definition of Loophole. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/loophole