duda, f., doubt, suspicion; sin —, doubtless.
dudar, to doubt, hesitate.
dudoso, -a, doubtful, uncertain, hazardous.
duelo, m., duel.
duelo, m., grief, mourning; funeral procession.
dueña, f., duenna, mistress, lady in waiting.
dueño, m., master, owner.
dulce, sweet, pleasant, soft, gentle, mild.
dulcisimo, -a, abs. super. of dulce, very (or most) sweet (soft or gentle).