cast off
US /kæst ˈɔːf/
UK /kæst ˈɔːf/

1.
descartar, abandonar
to get rid of something or someone that is no longer wanted or needed
:
•
The snake cast off its old skin.
A cobra se desfez de sua pele antiga.
•
They cast off their old beliefs and embraced new ideas.
Eles abandonaram suas antigas crenças e abraçaram novas ideias.
2.
zarpar, desamarrar
to untie a boat from its moorings and set sail
:
•
The crew prepared to cast off at dawn.
A tripulação se preparou para zarpar ao amanhecer.
•
Once the lines were clear, they cast off from the dock.
Assim que as amarras estavam livres, eles zarparam do cais.