#siempre#, always; #de ——#, customary, that one always had; #—— que#, each time that, whenever.
#sien#, f. temple.
#siglo#, m. century.
#significar#, to mean; #querer ——#, mean.
#siguiente#, following, next.
#silbar#, to whistle.
#silencio#, m. silence.
#silencioso, -a#, silent, mute.
#simpatía#, f. attractiveness, congeniality; appreciation.
#simpático, -a#, likable, congenial.