交際相手 こうさいあいて Meanings Noun person one is dating; significant other; partner; boyfriend; girlfriend Kanji 交 exchange. Read as コウ. 際 occasion. Read as サイ. 相 mutual. Read as あい. 手 hand. Read as て. Common phrases 交際相手がいる Words containing 交際相手 元交際相手 (もとこうさいあいて) former boyfriend Jinuma: Japanese Dictionary · Word lists