109 Definition
noun
(dated, informal, military, World War II) The German Messerschmitt 109 fighter aircraft.
1998, Middle Tenessee WWII Fighter Pilots Association, Missions Remembered: Recollections of the World War II Air War, page 68:Four 109s were spotted and attacked. After a dogfight, all four had been shot down. Three crashed on the same field.
Wiktionary
Other Word Forms of 109
Noun
Singular:
109
Plural:
109s
