This is the 35th most frequent Italian word.
non
"Non" means "not" in English.
Here, 'non' negates the verb 'voglio', meaning 'I do not want'.
Non voglio andare al cinema stasera.
I do not want to go to the cinema tonight.
Here, 'non' is used in the phrase 'non solo' to indicate 'not only'.
Non solo è intelligente, ma è anche simpatico.
Not only is he intelligent, but he is also nice.
Here, 'non' is used to negate the noun 'la verità' in juxtaposition with 'una bugia'.