1. to continue or preserve traditional methods, customs, or procedures that have been in use for a long time
The company decided to maintain old practices rather than modernize their operations.
A empresa decidiu manter práticas antigas em vez de modernizar suas operações.
2. to uphold established traditions or conventional ways of doing things
Many families maintain old practices passed down through generations.
Muitas famílias mantêm práticas antigas transmitidas através de gerações.