resonar - to resonate
resoplar - to puff
respaldar - to endorse
resplandecer - to shine
restablecer - to restore
restar - to subtract, to deduct, to reduce
restregar - to scour, to scrub , to chafe
restringir - to restrict
resumir - to sum up, to condense, to summarize
resurgir - to reappear, to reemerge
retener - to retain
retorcer - to wring