noun Someone possessing extraordinary intelligence or skill; especially somebody who has demonstrated this by a creative or original work in science, music, art, etc.
She's a genius; she won a Nobel Prize at fifteen!
noun Extraordinary mental capacity.
noun Inspiration, a mental leap, an extraordinary creative process.
a work of genius
noun The tutelary deity or spirit of a place or person.
and the genius of the place: the growing enthusiasm for codified standards in the Army and Navy
adjective Ingenious, brilliant, very clever, or original.