中退共 ちゅうたいきょう Meanings Noun Smaller Enterprise Retirement Allowance Mutual Aid System (retirement pension system established in 1959); SERAMA System; Chutaikyo System See also: 中小企業退職金共済 (ちゅうしょうきぎょうたいしょくきんきょうさい). Kanji 中 middle. Read as チュウ. 退 withdraw. Read as タイ. 共 together. Read as キョウ. Jinuma: Japanese Dictionary · Word lists