Compounds of 共

• 諸共
  (n-adv,n-t) (all) together
• 身共
  (pn,adj-no) (arch) I (used when speaking to their equals or inferiors)
  me
• 中共
  (n) (1) (abbr) Chinese Communist Party
  Chinese Communists
  (2) (sens) Communist China
• 日共
  (n) (abbr) (sens) Japanese Communist Party
• 反共
  (n) anticommunist
  (P)
• 防共
  (n) anticommunist (policies or measures)
• 容共
  (n) pro-communist
• と共に
  (exp) together with
• 餓鬼共
  (exp) those damn kids
• 共々に
  (adv) together
  in company
• 共依存
  (n,adj-no) codependence
• 共栄圏
  (n) co-prosperity sphere
• 共益費
  (n) monthly fee for common areas of an apartment building (lighting, etc.)
  condo fees
• 共演者
  (n) costar
  coactor
• 共稼ぎ
  (n,vs) working together
  (husband and wife) earning a living together
  (P)
• 共学制
  (n) coeducational plan
• 共感覚
  (n) synesthesia (synaesthesia)
• 共共に
  (adv) together
  in company
• 共作曲
  (n) joint work (art, music, etc.)
• 共作者
  (n) coauthor
  joint author
  collaborator
• 共産化
  (n,vs) communization
  communisation
• 共産軍
  (n) communist army
• 共産系
  (n) communist controlled
• 共産圏
  (n) communist bloc
  Iron Curtain
• 共産党
  (n) Communist Party
  (P)
• 共食い
  (n,vs) cannibalism (in animals)
  mutual destruction
  internecine struggle
  eating each other
  damaging each other
• 共進化
  (n,vs) coevolution
• 共進会
  (n) competitive exhibition
  prize show
• 共切れ
  (n,adj-no) same cloth
  spare cloth (e.g. for patching)
• 共著者
  (n) collaborator
  coauthor
  joint author