noun, noun, used as a suffix
great teacher; great master; great author; great doctor
Honorific or respectful term for a highly esteemed person in a field, often used as a title or suffix. The specific meaning depends on context: teacher, master, author, doctor, etc.
彼は書道の大先生として知られている。
He is known as a great master of calligraphy.
あの大
I'm looking forward to the new book by that great author.