Толковый словарь английского языка - professional

I. adjective Date: 1606 1. of, relating to, or characteristic of a profession, engaged in one of the learned professions, c. characterized by or conforming to the technical or ethical standards of a profession, exhibiting a courteous, conscientious, and generally businesslike manner in the workplace, 2. participating for gain or livelihood in an activity or field of endeavor often engaged in by amateurs , having a particular profession as a permanent career , engaged in by persons receiving financial return , following a line of conduct as though it were a profession , ~ly adverb II. noun Date: 1811 one that is ~