whistle
small, cylindrical object metal or plastic a wide, circular opening at the top a narrow, pointed opening at the bottom a small, round button at the top a loop or ring at the top for attaching a lanyard
whistle which has small, cylindrical object whistle which has metal or plastic whistle which is a wide, circular opening at the top whistle which is a narrow, pointed opening at the bottom whistle which is a small, round button at the top whistle which is a loop or ring at the top for attaching a lanyard