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LEGAL WORD

Expressio unius est exclusio alterius

Latin maxim · Interpretation

Expressio unius est exclusio alterius

  • Type: Latin maxim
  • Area of law: Interpretation

1 What it means

The express mention of one thing excludes others. If a law lists certain items, it is presumed to exclude those not listed.

2 Use it in a sentence

Since the section named only cars and buses, the court read it, by expressio unius, to exclude trucks.

3 Make it stick

Write your own sentence using Expressio unius est exclusio alterius about a case or topic you are studying this week, then check it against the meaning above.

Learn more: Legal Research Guidebook

4 Related words

Casus omissusContemporanea expositioEjusdem generisGeneralia specialibus non derogantHarmonious constructionLeges posteriores priores contrarias abrogantLex non cogit ad impossibiliaNoscitur a sociis

Legal dictionary: all 366 words · Today's Word of the Day · Weekly quiz

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