rebajarse - grovel
revalidar - certify, ratify
remar - row
ramificar - branch
readmitir - readmit
reagrupar - regroup, resettle
remodelar - remodel
reactivar - reactivate
reirse - laugh at
reverberar - reverberate
rarificar - dilute
reivindicar - claim back, reclaim
regentar - route
redoblar - redouble
ramonear - browse