superstar

Meanings

1. 1
   noun

   Someone who has accumulated a vast amount of fame; a high-level celebrity.

   Near-synonym: all-star (sometimes synonymous)

2. 2
   noun

   An exceptionally productive employee.

   Near-synonym: all-star (sometimes synonymous)

3. 3
   noun

   A giant star; (loosely) any giant star, bright giant, supergiant, or hypergiant.

   The greater an object's mass, the greater its gravitational force. If a star could attain a certain mass --- say a million to 100 million times the mass of our own sun --- then its gravity would become 100 times as powerful as the forces generated by the strongest known nuclear reactions. Such a super superstar, in a normal course of its evolution, would contract.

4. 4
   noun

   someone who is dazzlingly skilled in any field

Etymology

From super- + star.