1. A clearly marked and easily distinguishable path or route, typically in nature or outdoors, that is easy to follow
The hikers followed the well-defined trail through the forest without getting lost.
Os caminhantes seguiram a trilha bem definida pela floresta sem se perderem.
2. A clearly established or marked route in a particular context, such as a career path or research direction
The mentor provided a well-defined trail for the student's academic development.
O mentor forneceu uma trilha bem definida para o desenvolvimento acadêmico do aluno.