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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 second episode of “A Knight of the Seven Kingdoms,” HBO’s adaptation of George R.R.

From Los Angeles Times • Jan. 25, 2026

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

Hence, our collective shock may be familiar to those “Last of Us” viewers who read George R.R.

From Salon • Apr. 21, 2025

After the awarding of prizes for the best floats the declarations of the conference were read by Major R.R.

From Booker T. Washington Builder of a Civilization by Scott, Emmett J. (Emmett Jay)