1. A method or procedure that is not mandatory but can be chosen to be used based on preference or need
The optional technique for this exercise allows for better form.
A técnica opcional para este exercício permite uma forma melhor.
2. In sports, arts, or professional contexts: an alternative approach or skill that may be applied at the discretion of the practitioner
Swimming has several optional techniques for different strokes.
A natação tem várias técnicas opcionais para diferentes estilos.