Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use R.R. in a sentence
“RR—All of us tell everyone in our shops to shut up,” Weinberger recorded the president saying.How the Reagan White House Bungled Its Response to Iran-Contra Revelations | Malcolm Byrne | November 3, 2014 | THE DAILY BEAST
And you definitely don't need RR to have those worries; there's quite a large volume of literature on that sort of thing.
Pararthria, pa-rr′thri-, n. disordered articulation of speech.
The hollow shaft N has two snugs to which the chains RR are attached (fig. 175).
In the words of good old Proffy Fontaine: No wan can do mo-rr-rr!Marjorie Dean College Freshman | Pauline Lester
The modified sides (rr) for convenience sake, have been called the radii; they invariably overlap the adjoining compartments.A Monograph on the Sub-class Cirripedia (Volume 2 of 2) | Charles Darwin
This is divided by partitions of peculiar form into four vessels of equal capacity, and dips into a closed water reservoir, RR'.
British Dictionary definitions for RR
(in the US and Canada) railroad
(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