Usage Note
Professionnellement describes actions done in a professional capacity or to a professional standard. It is often contrasted with personnellement (personally) in contexts like je le connais professionnellement (I know him professionally). The related adjective professionnel also means 'vocational', as in lycée professionnel (vocational high school).
Examples
"Elle agit toujours professionnellement."
Natural Translation
She always acts professionally.

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