rugir - to roar, to rumble
recelar - to distrust; =--se de=, to distrust
recrearse - to amuse one's self
refrenar - to rein in, stop
refrescarse - to recuperate, gain new strength
regalarse - to treat one's self
repicar - to sound, ring, toll
retemblar, (ie) - to tremble
reunirse - to join; reunite, meet again
revender - resell
resorber - reabsorb
realzar - increments, to increase