A glossary of code words, abbreviations etc. used during World War II in connection with operations carried out by the Royal Air Force: * Angels – height in thousands of feet * Bandit – identified enemy aircraft * Bogey – unidentified (possibly unfriendly) aircraft * Channel Stop – Air operations intended to stop enemy shipping passing through the Strait of Dover. * Circus – bomber attacks with fighter escorts in the day time. The attacks were against short range targets with the intention of occupying enemy fighters and keeping their fighter units in the area concerned. * Flower – patrols in the area of enemy airfields with the intention of preventing aircraft from taking off and attacking those aircraft that succeeded. * Gardening – mine-laying operations *