rule = regulation
radius
r is the symbol for rate
A regular polygon
The answer depends on what you mean by "r values".
An Egyptian word that starts with a r is Ramses
A word that starts with S and ends with X is sphinx.
dictator
SMILER - There is a mile between the s and the r!
repulsive
respiratory
riet
respiration
Revenue
repast
rondeau
rollsrelativesreflectionsrelaxation