1. to extend or lengthen the conclusion or final part of something
The director decided to prolong the ending of the film with additional scenes.
O diretor decidiu prolongar o final do filme com cenas adicionais.
2. to delay or postpone the conclusion of an event, relationship, or situation
They tried to prolong the ending of their vacation by booking extra days.
Eles tentaram prolongar o final de suas férias reservando dias extras.