old master; venerable teacher
Respectful term for an elderly teacher or master, often in traditional arts, scholarship, or martial arts. Conveys deep respect and seniority.
He studies under an old master of calligraphy.
old monk; aged priest
Specifically refers to an elderly Buddhist monk or priest, often a senior figure in a temple. Used with reverence.
The old monk chants sutras in the main hall every morning.
老師の教えは今も心に残っている。
The teachings of my old teacher still remain in my heart.