soler, to be wont, be accustomed.
solito, -a, all alone, entirely alone.
solo, -a, alone ([section 72]).
sólo, only ([section 71]), just ([section 24]).
sombra, f., shade, shadow.
sonar, to ring ([section 116]).
sonrisa, f., smile.
soplar, to blow.
soportar, to bear, endure, stand ([section 85]).