silencio, m., silence.
silencioso, -a, silent, deserted, mute.
silfo, m., sylph, fairy.
silueta, f., silhouette.
silvestre, wild, uncultivated.
silla, f., seat, see, diocese.
sillar, m., hewn stone.
sillería, f., seat, stall(s); 'hewn stone.
sillón, in., armchair.
sima, f., abyss, gulf.