1. To extend or make longer the conclusion or final part of something, such as a story, speech, musical piece, or event
The director decided to lengthen the ending of the film by adding extra scenes.
O diretor decidiu prolongar o final do filme adicionando cenas extras.
2. To delay or extend the conclusion of an activity or process
They chose to lengthen the ending of the project to improve the final result.
Eles optaram por prolongar o final do projeto para melhorar o resultado final.