Synonyms for Mop (same or very similar meaning)
WordNet sense 1 (cleaning implement consisting of absorbent material fastened to a handle; for cleaning floors):
swab, swobWordNet sense 2 (to wash or wipe with or as if with a mop):
wipe up, mop upWordNet sense 3 (make a sad face and thrust out one's lower lip):
mow, pout, mowFrom the ODE community, based on WordNetadd/edit