We found 8 dictionaries that define the word rir:

General (3 matching dictionaries)

1. rir: Wordnik
2. RIR: Dictionary.com
3. RIR: Wiktionary

Computing (1 matching dictionary)

4. RIR: Encyclopedia

Miscellaneous (2 matching dictionaries)

5. RIR: Acronym Finder
6. AbbreviationZ (No longer online)

Slang (1 matching dictionary)

7. RIR: Urban Dictionary

Tech (1 matching dictionary)

8. RIR: Webster's New World Telecom Dictionary

Definitions from Wiktionary (RIR) ▸ noun:  (Internet) Initialism of Regional Internet registry. ▸ Words similar to rir ▸ Usage examples for rir ▸ Idioms related to rir ▸ Wikipedia articles (New!) ▸ Popular adjectives describing rir ▸ Words that often appear near rir ▸ Rhymes of rir ▸ Invented words related to rir