aeronautics, aviation Avis: 1. notification, notice Axiom: 1. axiom Axt: 1. axe Azetylen: 1. acetylene Azur: 1. sky blue Babylonien: 1. Babylonia Bach: 1. stream Backbord: 1. port side Backe: 1. cheek Backenbart: 1. whiskers, side-whiskers Backenstreich: 1. slap Backofen: 1. ...