soucoupe, n.f., saucer; salver.
soudable, adj., that can be soldered.
soudage, n.m., soldering, welding.
soudain, -e, adj., sudden, unexpected, unlooked-for.
soudain, adv., suddenly, on a sudden, all of a sudden.
soudainement (-dè-n-mān), adv., suddenly, on a sudden, all of a sudden.
soudaineté (-dè-n-té), n.f., suddenness, unexpectedness.
soudan, n.m., (—s) sultan.
soudard or soudart, n.m., (fam.) trooper, veteran soldier.
soude, n.f., (min.) soda; (bot.) glasswort.