The meaning of the Acronym JR is...

JR is

• Just Rehearsing
• Jazz Rock

More Meanings For JR:

• Justification Right
• Jump Relative
• Jump Register
• Java Run
• Just Relaxing
• Just Rotten
• Just Right
• Juvenile Retard
• Jennifer Rose
• Junky Radio
• John Robert
• John Romeo
• Justin Randall
• Jebediah Romano
• Junior

JR is also in:

• Adults
• Assembly
• Chat
• Food
• Funnies
• Names and Nicknames
• Software