noun
Often refers to a habitual or professional gambler, sometimes with a slightly old-fashioned or underworld nuance. In modern contexts, ギャンブラー is more common for casual gamblers.
彼は若い頃、博徒として生計を立てていた。
When he was young, he made a living as a professional gambler.
博徒たちが集まる賭場が摘発された。
The gambling den where the gamblers gathered was raided.