Tropes are devices and conventions that a writer can reasonably rely on as being present in the audience members’ minds and expectations. On the whole, tropes are not clichés. The word clichéd means “stereotyped and trite.” In other words, dull and uninteresting. We are not looking for dull and uninteresting entries.

TVTropes, un wiki recensant les mécanismes classiques des scénarios. Passionnant. Sinon, Trope existe en français, avec un sens proche.