学がっ研けんがっけんFreq.FrequencyTop 50,000Meanings1nounGakken (publisher)company nameCompany name; refers to the Japanese educational publisher Gakken Holdings Co., Ltd.学がっ研けんの教きょう材ざいは多おおくの学がっ校こうで使つかわれている。Gakken's teaching materials are used in many schools.
