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.
plural altitudes. Learner's definition of ALTITUDE. : the height of something (such as an airplane) above the level of the sea. [count] We're now flying at an altitude [=height] of 10,000 feet. the air temperature at different altitudes. Some visitors find it difficult to adjust to the city's high altitude.