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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In addition, Pelosi was charged with an infraction of making an unlawful turn, Napa County prosecutors said Friday.—ABC News,
17 July 2026 Prosecutors also filed an infraction charge for making an unlawful turn.—
Corey Schmidt,
Sacbee.com,
17 July 2026 The downtown Chicago Magnolia Bakery location had previously failed an inspection on April 21 for various infractions including food debris, dust buildup and chipping paint, but then passed a canvass re-inspection on April 28.—
Chiara Kim,
PEOPLE,
16 July 2026 Last year, Boise passed its own ordinance to comply with the law, banning camping and ticketing violators with an infraction and a $10 fine.—
Mark Dee,
Idaho Statesman,
14 July 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