attorney
This term carries a heavy weight of professional authority and legal mandate. While lawyer is a general term for anyone trained in law, attorney specifically emphasizes the role of agency, meaning the person is authorized to act on behalf of another party. It is the standard professional designation in American legal settings. In a non-legal context, the term appears in specific administrative roles like power of attorney, where the focus shifts from courtroom litigation to the legal right to manage someone else's finances or healthcare decisions. This creates a distinction between a legal advocate and a trusted representative.
Countable when referring to the individual professionals practicing law or the specific people appointed as agents.