Definition of illegal sometimes disparaging + offensive : a person who enters or lives in a country without the documentation required for legal entry or residence
aerial noun [C]. âº a âstructure made of âmetal ârods or âwires that âreceives or âsends out âradio or âtelevision âsignals.
aviation (ËeÉªvÉªËeÉªÊÉn) n 1. (Aeronautics) a. the art or science of flying aircraft b. the design, production, and maintenance of aircraft 2. (Military) US military aircraft collectively [C19: from French, from Latin avis bird]