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.
aero-. combining form. 1. denoting air, atmosphere, or gas: aerodynamics. 2. denoting aircraft: aeronautics.