1. RJ - Noun
2. RJ - Proper noun
3. RJ - Symbol
RJ
(astronomy) Jovian radius: a unit of measurement, equal to the radius of Jupiter.
Synonym: R♃
Initialism of Rio de Janeiro.
Initialism of Rajasthan.
(aviation) Initialism of regional jet.
(telecommunications) Initialism of registered jack.
Initialism of reproductive justice.
Initialism of restorative justice.
Source: en.wiktionary.org