acentuar, acrescentar, acrescer, agigantar, alargar, ampliar, amplificar, aumentar, avolumar, avultar, crescer, desdobrar, desenvolver, enfestar, engordar, engrandecer, ensanchar, expandir, intensificar, magnificar, medrar, recrudescer, redobrar
amiudar, bisar, recantar, redobrar, reduplicar, repetir
multiplicar
dobrar, geminar