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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The Denver District Attorney’s Office was the special prosecutor assigned to the case, and prosecutors dismissed another misdemeanor DUI charge and two traffic infractions as part of the plea agreement.—Katie Langford, Denver Post, 3 June 2026 Last year, Porter improved his technique and trusted it, cutting the infractions nearly in half (nine flags, three declined and six accepted).—Mike Defabo, New York Times, 3 June 2026 Hart got in trouble for all sorts of infractions that didn’t seem like a big deal – showing up late to school, using his phone and eating in the hallways.—Dana O’Neil, CNN Money, 3 June 2026 Also, if a player is shown a yellow or red card for an infraction committed by another player, VAR may intercede to make sure it’s given to the correct player.—Pete Grathoff, Kansas City Star, 3 June 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