An infraction is usually the breaking of a law, rule, or agreement. So a nation charged with an infraction of an international treaty will usually have to pay a penalty. In Federal law, an infraction is even smaller than a misdemeanor, and the only penalty is a fine. Most of us occasionally commit infractions of parking laws and get ticketed; speeding tickets are usually for infractions as well, though they go on a permanent record and can end up costing you money for years to come. The closely related word infringement generally refers to a violation of a right or privilege; use of another's writings without permission, for example, may be an infringement of the copyright.
speeding is only a minor infraction, but vehicular homicide is a serious felony
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Officials looked for minor infractions, such as violating the terms of a student visa by working part time, and deported offenders.—
Rozina Ali,
New Yorker,
21 Aug. 2026 State Bill 720 made the program possible by reclassifying red light violations as civil infractions and adding privacy safeguards that bar photographing drivers and using facial recognition.—Sacbee.com,
21 Aug. 2026 On the books, to sell food without a permit is an infraction.—
Da Lin,
CBS News,
14 Aug. 2026 Every time a player screwed up, the coaching staff and his teammates received a text message, calling out both the infraction and the guilty party.—
Dana O’Neil,
CNN Money,
14 Aug. 2026 See All Example Sentences for infraction
Word History
Etymology
Middle English, from Medieval Latin infraction-, infractio, from Latin, subduing, from infringere to break — more at infringe