See also: nr, nr., .nr, and Nr. Translingual Symbol NR (international standards) ISO 3166-1 alpha-2 country code for Nauru. Synonym: NRU (alpha-3) English Adjective NR (not comparable) (finance, entertainment) Initialism of not rated. Coordinate terms entertainmentAAOEE-10GMNC-17PEGI-12PEGI-16PEGI-18PEGI-3PEGI-7PGPG-13RRPRP-17TTV-13TV-17TV-GXXXXXXXXXX Noun NR (sports) Initialism of national record. Coordinate terms sports recordCRGRMRORPBSBSRWR Proper noun NR (rail transport) Initialism of Network Rail, a rail infrastructure manager in Great Britain Anagrams R.N., RN, rn German Noun NR (apartment listing) Abbreviation of Nichtraucher.Wikiwand - on Seamless Wikipedia browsing. On steroids.