The term SEANCE SOUNDS is composed of two crossword solutions, RAPS and MOANS. RAPS is a four letter word meaning to make a series of sharp, quick sounds with the mouth, usually in rhythm. MOANS is a five letter word meaning to make a low, mournful sound expressing physical or mental suffering. These two words together describe the type of sounds often heard during a seance, a gathering of people attempting to communicate with spirits of the dead.