intro /ˈɪntɹoʊ/noun 3verb 1forms 3 noun3 •(informal) An introduction. •(informal) The opening sequence at beginning of a film, television program, etc. •A small demo produced to promote one's demogroup or for a competition.If the rules specify that the DLLs' size will be added to the 64K limit, there's not a lot of space to code an intro. — 1999 verb1 •(informal) To introduce. formsintroed · introing · intros