This is the 5333rd most frequent Portuguese word.
registar
To record, register, or note.
Here, 'registar' means to officially record or register an item in a formal or governmental database.
Vou registar o carro no departamento de transportes.
I will register the car at the transportation department.
In this context, 'registar' is used to mean capturing or recording data or measurements.
O dispositivo pode registar a temperatura ambiente.
The device can record the ambient temperature.
Here, 'registar' refers to submitting information to protect intellectual property rights.