The term CROWD NOISES can be summarized by two crossword solutions: RAHS (4 letters) and ROARS (5 letters). RAHS is an acronym for the sound of a crowd cheering, which is often heard at sporting events or concerts. ROARS is a louder sound that is usually associated with a large group of people expressing approval or excitement. Both of these sounds are common in large gatherings and can be used to describe the collective noise of a crowd.