Some english words and its meaning

SOME WORDS AND  ITS MEANING

1.  Error                 :-   wrong things done unknowingly

2. Mistake            :-     Wrong things done knowing the consequence

3. Discover            :-     Find out an object or place which is already 

                                    exists

4. Invention          :-     Find out an objects ,or theory which is not  

                                   existed

5. Popular             :-    Famous in a good way

6. notorious           :-   Famous  in a bad way