Meaning of DIALOGUE in English

US also dialog [noun] - (a) conversation which is written for a book, play or film, or formal talks between opposing countries, political groups, etc. who have previously not had good relationshipsThe play contained some very snappy/witty dialogue. [U]Act Two begins with a short dialogue between father and son. [C]The two sides involved in the conflict have at last begun to engage in a constructive/fruitful dialogue (= formal talks). [C]The rebel leaders have stated that they are now willing to enter into dialogue (= formal talks) with the government. [U]

Cambridge English vocab.      Кембриджский английский словарь.