3 definitions found From WordNet (r) 2.0 [wn]: RI noun: a state in New England; one of the original 13 colonies; the smallest state [syn: {Rhode Island}, {Little Rhody}, {Ocean State}] From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]: RI Ring Indicator (RS-232, MODEM) From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]: RI Routing Information

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