noun (plural geniuses)
1 [U] unusually great intelligence, skill or artistic ability:
the genius of Shakespeare * a statesman of genius * Her idea was a stroke of genius.
2 [C] a person who is unusually intelligent or artistic, or who has a very high level of skill, especially in one area:
a mathematical / comic genius * He's a genius at organizing people. * You don't have to be a genius to see that they are in love!
3 [sing.] ~ for sth / for doing sth a special skill or ability:
He had a genius for making people feel at home.
IDIOMS
sb's good / evil genius (especially BrE) a person or spirit who is thought to have a good/bad influence over you
