This is the 2171st most frequent Arabic word.
نجم
Star.
نجم is used to mean a celestial body, i.e., a star.
ظهر نجم ساطع في السماء الليلة.
A bright star appeared in the sky tonight.
نجم is used metaphorically to refer to a famous or prominent person.
هو نجم مشهور في عالم الرياضة.
He is a famous star in the world of sports.
نجم refers here metaphorically to an outstanding or distinguished figure in a specific group.