expressio unius est exclusio alterius

noun
ex·​pres·​sio uni·​us est ex·​clu·​sio al·​ter·​i·​us | \ ik-ˈspre-shē-ō-yu̇-ˈnī-əs-ˌest-ik-ˈsklü-zē-ō-ȯl-ˈtir-ē-əs, ek-ˈspre-sē-ō-ü-ˈnē-u̇s-ˌest-ek-ˈsklü-sē-ō-äl-te-ˈrē-u̇s \

Legal Definition of expressio unius est exclusio alterius

: a principle in statutory construction: when one or more things of a class are expressly mentioned others of the same class are excluded

History and Etymology for expressio unius est exclusio alterius

New Latin, the explicit mention of one (thing) is the exclusion of another

Keep scrolling for more

Learn More about expressio unius est exclusio alterius

Cite this Entry

“Expressio unius est exclusio alterius.” Merriam-Webster.com Legal Dictionary, Merriam-Webster, https://www.merriam-webster.com/legal/expressio%20unius%20est%20exclusio%20alterius. Accessed 9 Jul. 2020.

Comments on expressio unius est exclusio alterius

What made you want to look up expressio unius est exclusio alterius? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!