silbido, whistling.

silencio, quiet, peace.

silenciosamente, silently, in silence.

silencioso, silent, mute, quiet.

silueta, outline, silhouette.

silla, chair, saddle.

sillería, rows of chairs (in the choir of a church).

simbólico, symbolical.

simpatía, sympathy, congeniality, kindly interest.

simpático, charming, winsome.