sulaa.

to melt, thaw (change from a solid state to a liquid state, usually by a gradual heat)

Lumet sulavat.

Jäätelö suli helteessä.

to be digested, digest (undergo digestion, e.g. of food into nutrients)

Monien mielestä lanttulaatikko sulaa huonosti.

synonym of liueta (“to dissolve”)

to dissolve, disperse, vanish

Hänen ongelmansa sulivat pois.

to melt (soften, as by a warming or kindly influence)

to fall apart (lose composure, fall into crisis, e.g. of a sports team suddenly starting to lose in a match)