古こ書しょ市いちこしょいちMeanings1nounsecondhand book fairRefers to a market or fair where used books are sold, often held at a specific venue or as a periodic event.今こん週しゅう末まつ、公こう園えんで古こ書しょ市いちが開ひらかれる。A secondhand book fair will be held at the park this weekend.