RI may refer to any of the following:

• Rhode Island ((United States postal abbreviations))
• Aquidneck Island (sometimes called Rhode Island, not to be confused with the state)
• The Rock Island railroad (AAR reporting marks RI)
• Mandala Airlines (IATA airline designator)
• Raffles Institution, a school in Singapore
• Random Insanity, a GameFAQs message board
• A reference implementation software package
• Referential integrity, a concept in computer databases
• Refractive index
• Refugees International, an international humanitarian organization
• Rehabilitation International, an international disability rights organization
• The Royal Institution of Great Britain
• Ring Indicator, a signal in the RS232 serial communications standard

Ri may refer to any of the following:

• The Ri, an aquatic creature in Japanese mythology described as a mix between a human and a jellyfish
• A traditional unit of length in both Korea (리, ri) and Japan (里, ri) based upon the Tang Dynasty Chinese li (里, lǐ or 市里, shì lǐ)
• A Romanization of the Japanese kana り and リ
• An augmented second in Solfege
• The commonly used and known representation of the second Swara — "Rishabam" (Carnatic) or "Rishab" (Hindustani classical music) in the Indian Classical Music form.
• A neologism used as a gender-neutral pronoun in Esperanto (see: Riism)
• Ri is a commune of the Orne département, in France
• A 2 letter code on licence plates from the city of Rijeka in Croatia
• Rí is the ancient Gaelic word meaning King; see High King of Ireland.

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

ksh:RI (Watt ėßß datt?)

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