Street sound is a term used to describe the various noises that can be heard on a street. The crossword solutions for this term are SIREN (5 letters), BEEP (4 letters), RAP (3 letters) and TOOT (4 letters). A SIREN is a loud, wailing sound often associated with emergency vehicles. Beeping is a short, high-pitched sound usually made by a car horn or alarm. RAP is a type of music characterized by spoken or chanted rhyming lyrics. Lastly, tooting is a short, sharp sound made by a horn or whistle.