What does 大家 mean?
大家 is a Japanese noun meaning “landlord” in English. It can also be translated as “mansion, rich family” depending on context. It is written as 大家 in kanji, おおや in hiragana, and ooya in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
あの人は物理学の大家です。
He is an authority on physics.