1. to reveal or make known the conclusion or outcome of a story, film, book, or other narrative, often unintentionally or against someone's wishes
Please don't disclose the ending of the movie - I haven't seen it yet!
Por favor, não revele o final do filme - eu ainda não assisti!
2. to spoil a plot by revealing crucial information about how a story concludes
He accidentally disclosed the ending during our conversation.
Ele acidentalmente revelou o final durante nossa conversa.