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R.R.

American  

abbreviation

  1. railroad.

  2. Right Reverend.

  3. rural route.


RR British  

abbreviation

  1. (in the US and Canada) railroad

  2. Right Reverend

  3. (in the US and Canada) rural route

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The argument of training as copyright infringement has managed to advance there as of Monday, thanks to output from ChatGPT that appeared to be mighty similar to George R.R.

From Slate • Nov. 3, 2025

A landmark event in “Fire & Blood,” author George R.R.

From Los Angeles Times • Jun. 4, 2025

People who played “The Last of Us” knew what was coming in the same way anyone who read George R.R.

From Salon • May 19, 2025

“These are extraordinary treasures made by Emmy-winning costume designers and prop makers, who worked tirelessly to adapt George R.R. Martin’s wonderful novels.”

From Los Angeles Times • Oct. 14, 2024

This meant changing the roadbed of the Santa Fe & Disneyland R.R.

From Question of Comfort by Collins, Les