1. To reduce speed or pace as one approaches the end of a race, task, or activity
The runner decided to slow down the finish after exhausting himself in the middle miles.
O corredor decidiu desacelerar o final depois de se exaurir nos quilômetros do meio.
2. To deliberately delay or postpone the conclusion of something
We need to slow down the finish of this project to ensure quality.
Precisamos retardar o término deste projeto para garantir qualidade.