The term 'blower whistle' can be broken down into five separate words: COP (3 letters), REF (3 letters), TOOT (4 letters), TOOTER (6 letters), and TEAKETTLE (9 letters). A COP is a police officer, a REF is a referee, TOOT is a short, sharp sound, TOOTER is a slang term for a person who makes a loud noise, and teakettle is an old-fashioned metal pot with a spout and handle used for boiling water. Together, these words describe a device that produces a loud, shrill sound, such as a whistle or siren.