Meaning

• Someone possessing extraordinary intelligence or skill; especially somebody who has demonstrated this by a creative or original work in science, music, art etc.

  "I think that would qualify as not smart, but genius... and a very stable genius at that!"

• Extraordinary mental capacity.

• Inspiration, a mental leap, an extraordinary creative process.

  "a work of genius."

• The tutelary deity or spirit of a place or person.

Meaning

• Ingenious, brilliant, very clever, or original.

  "What a genius idea!"