区間快速 くかんかいそく Meanings Noun Regional Rapid Service (JR West); Section Rapid Service (i.e.: train service which is local for one section and express for another) Kanji 区 district. Read as ク. 間 interval. Read as カン. 快 pleasant. Read as カイ. 速 speed. Read as ソク. Jinuma: Japanese Dictionary · Word lists