Expressio unius est exclusio alterius

Definition - Noun
[New Latin, the explicit mention of one (thing) is the exclusion of another]
: a principle in statutory construction: when one or more things of a class are expressly mentioned others of the same class are excluded
Pronunciationik-'spre-shE-O-yu'-'nI-&s-"est-ik-'sklü-zE-O-o'l-'tir-E-&s, ek-'spre-sE-O-ü-'nE-u's-"est-ek-'sklü-sE-O-äl-te-'rE-u's

Pronunciation Key

  • \&\ as a and u in a b ut
  • \[^&]\ as e in kitt en
  • \&r\ as ur and er in f urther
  • \a\ as a inash
  • \A\ as a in ace
  • \?\ as o in m op
  • \au\ as ou in ou t
  • \ch\ as ch in ch in
  • \e\ as e in bet
  • \E\ as ea in easy
  • \g\ as g in go
  • \i\ as i in hit
  • \I\ as i in ice
  • \j\ as j in job
  • \[ng]\ as ng in sing
  • \O\ as o in go
  • \o\ as aw in law
  • \oi\ as oy in boy
  • \th\ as th in thin
  • \[th_]\ as thin the
  • \?\ as oo in loot
  • \u\ as oo in foot
  • \y\ as y in yet
  • \zh\ as si in vision


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Based on Merriam-Webster's Dictionary of Law ©2001.
Merriam-Webster, Incorporated
Published under license with Merriam-Webster, Incorporated.
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