RI

Definition from Wiktionary, the free dictionary
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English[edit]

Proper noun[edit]

RI

  1. Initialism of Rhode Island, a state of the United States of America.
  2. Abbreviation of Riau, a province of Indonesia.

Noun[edit]

RI (plural RIs)

  1. Initialism of radioisotope.

Abbreviation[edit]

RI

  1. (monarchy) rex imperator (king-emperor) or regina imperatrix (queen-empress); the initials by which a British monarch signed documents after his or her name from 1877 until 1947.

Anagrams[edit]