1. The customary or conventional way of using something that has been established and passed down over time
The traditional usage of this word has changed over the centuries.
O uso tradicional dessa palavra mudou ao longo dos séculos.
2. Established practice or custom in the handling, application, or employment of something
In traditional usage, this herb was used for medicinal purposes.
No uso tradicional, essa erva era usada para fins medicinais.