utilizar - to use, utilize

ubicar - to locate

ultimar - to finish off

ultrajar - to outrage, to insult, to offend

ulular - to hoot

unificar - to unify

uniformar - to make uniform

unir - to unite, to join

ungir - to anoint, to put ointment on

untar - to smear, to grease, to bribe

urbanizar - to urbanize

urdir - to warp

usurpar - to usurp

urgir - to be urgent

unirse - unite

uncir - chuck