súbito, -a, sudden.
subsistir, to exist, remain.
subterráneo, -a, subterranean; subst. m., vault, cave, dungeon.
suceder, to succeed, result, happen, take place, be the matter; — á, to succeed, take the place of.
suceso, m., event, incident, result, success.
sudario, m., shroud.
sudor, m., sweat, perspiration.
suelo, m., ground, floor.
suelto, -a, adj. pp. (irr.) of soltar, detached, loose, flying, free, flowing; á pierna suelta, at one's ease; undisturbed, dormir á pierna suelta, to sleep soundly.
sueño, m., sleep, dream.