refutar - to refute
regañar - to scold, to tell off
regenerar - to regenerate
reglamentar - to regulate
regocijar - to delight, to fill with joy
rehacer - to remake
reiterar - to reiterate, to repeat
relanzar - to throw back, to repel
relatar - to relate, to recount
rellenar - to refill, to fill with, to fill in