responder, to respond, answer.
responsabilidad, f., responsibility.
responsorio, response, responsory (verses recited by the priests or monks during prayers).
restablecer, to reestablish, restore, recover.
restar, to remain.
resto, rest, remnant, remainder.
restregar (ie), to rub.
resucitar, to resuscitate, revive.
resueltamente, resolutely.
resuelto, resolute, bold.