1. A data field in a form, database, or system that does not need to be filled in or completed; optional field
The phone number is a non-required field in the registration form.
O número de telefone é um campo não obrigatório no formulário de registro.
2. In programming and web development, an input field that users may leave blank without causing validation errors
We made the company field non-required to accommodate freelancers.
Tornamos o campo da empresa não obrigatório para acomodar freelancers.