This is the 494th most frequent Portuguese word.
profissional
Professional.
In this sentence, 'profissional' is used as a noun to denote a person who is skilled and trained in a particular field, referring to their profession.
Ele é um profissional de saúde muito dedicado.
He is a very dedicated health professional.
Here, 'profissional' functions as an adjective describing someone's behavior that adheres to professional standards or etiquette.
O comportamento dela foi muito profissional durante a reunião.
Her behavior was very professional during the meeting.
In this context, 'profissional' is an adjective describing how one should approach tasks or interactions with professionalism and skill.