S1P3O1N1G2I1N1G2
12 points
SPONGING is validvalid
SPONGE, to wipe with a mass of absorbent material
SPONGE, to wipe with absorbent material, also SPUNGE
SPONGE, to wipe with a mass of absorbent material
SPONGE, to wipe with absorbent material, also SPUNGE