1. to append or attach something to the conclusion or final part of something else
The director decided to add to the ending of the film with an extra scene.
O diretor decidiu adicionar ao final do filme uma cena extra.
2. to increase or supplement the concluding portion of a written work, speech, or narrative
She wanted to add to the ending of her essay with a stronger conclusion.
Ela queria adicionar ao final de seu ensaio uma conclusão mais forte.