1. A subject, idea, or motif that is widely recognized, accepted, and commonly used in art, literature, music, or discourse
Love and loss are conventional themes in romantic poetry.
O amor e a perda são temas convencionais da poesia romântica.
2. A recurring or traditional subject matter that follows established patterns and expectations
The hero's journey is a conventional theme in fantasy novels.
A jornada do herói é um tema convencional nos romances de fantasia.