The Cambridge Dictionary says that "''The meaning of something is what it expresses or represents''"<ref>[https://dictionary.cambridge.org/dictionary/english/meaning Cambridge Dictionary online]</ref>. As simple as it may seem, the notion of "meaning" is rather generic and vague; there is still no commonly accepted answer to the question 'what does "meaning" mean?' Controversial theories of meaning have been advanced, and each has its advantages and shortcomings<ref>{{cita libro | The Cambridge Dictionary says that "''The meaning of something is what it expresses or represents''"<ref>[https://dictionary.cambridge.org/dictionary/english/meaning Cambridge Dictionary online]</ref>. As simple as it may seem, the notion of "meaning" is rather generic and vague; there is still no commonly accepted answer to the question 'what does "meaning" mean?' Controversial theories of meaning have been advanced, and each has its advantages and shortcomings<ref>{{cita libro |