中堅 [ちゅうけん] /(n) (1) nucleus/backbone/mainstay/key figure/(adj-no,n) (2) medium-level/mid-level/middle-ranking/midsize/(n) (3) main body (of troops)/crack troops/select troops/(n) (4) {baseb} center field/centre field/center fielder/centre fielder/(n) (5) (See 先鋒・せんぽう・2) athlete competing in the middle-number match in a team competition, i.e. second in 3-on-3, third in 5-on-5 (kendo, judo, etc.)/(P)/EntL1424090/