Cases of word usage

1) great and exceptional intelligence or artistic ability (genius)

2) a foolish person; ( not now used) a person with very low intelligence (imbecile)

3) having, showing intelligence (intelligent)

4) Intelligence Quotient (a measure for comparing intelligence) (IQ)

5) (of a person) having developed intelligence earlier that is normal (precocious)

6) suffering from physical or mental weakness because of old age; lacking intelligence because of old age (senile)

7) of little depth; not showing much intelligence or ability (shallow)

8) an act of polishing; to give out bright light; to show particular ability or intelligence (shine)