(plural: ‘aliens‘; the opposite word in meaning is ‘native’)
a person who stays at a place (in a foreign country) but does not belong or not a native/local of that place;
a person who is a native of a place but does not belong to a particular group;
a person who is a native or local of a region but does not belong to a family, community, race, etc., but of a different family, community, etc.;
a living thing (being or creature) from outer space (from another planet or galaxy) that visits the Earth; an extraterrestrial,
In my teaching career, I have been an alien three times at three different places: in Addis Ababa, Ethiopia; in Muscat, Oman; and in London, England.
Aliens are treated differently in different regions of the world, depending also on the status of an individual alien; for instance, aliens on diplomatic missions enjoy the most privileges, aliens visiting as tourists enjoy better treatment, aliens with high technical qualifications or artistic talents visiting a foreign country on employment visa feel comfortable and secure and receive good pay, lowly educated aliens of menial jobs face harsh and humiliating situations, and finally, illegal aliens risk everything — their little savings, dignity, decency, and face legal punishments and deportation, just to get themselves accepted in that foreign land!
Sightings of aliens from outer space has been a phenomenon in the history of mankind: there are incidents of aliens visiting our planet, having consultations with earthlings and even abducting people have been found in most of our religious and historical writings since ancient times, and there are occasional news reports that disclose a scientist or astronomer seeing an alien on a spaceship, also called ‘UFO — unidentified flying object’, and more exciting and make-believe stories, Hollywood films and TV serials have made aliens a fact rather than a fiction in the minds of the present generation.