noun
Refers to a company or business that publishes books, magazines, or other printed materials. Slightly informal or colloquial compared to 出版社.
彼は小さな出版屋を経営している。
He runs a small publishing house.
Compound of 出版 (shuppan, 'publishing') and 屋 (ya, 'shop' or 'dealer'). The suffix 屋 is commonly used to indicate a business or tradesperson.