ストックホルム症候群[sutokkuhorumushoukougun] Stockholm syndrome
亜群[agun] subgroup
一群[ichigun] group
一群れ[hitomure] group
可換群[kakangun] Abelian group

魚群[gyogun] school of fish
繰込み群[kurikomigun] renormalisation group (physics)
群がる[muragaru] to swarm
群れ[mure] group

蘇連[soren] (former) Soviet Union
ドイツ連邦共和国[doitsurenpoukyouwakoku] Federal Republic of Germany (former West Germany)
破天連[pateren] Portuguese Jesuits (in Japan in the 16th century)
一連[ichiren] series
引連れる[hikitsureru] to take along with

英連邦[eirenpou] Commonwealth of Nations (formerly British Commonwealth)
欧州連合[oushuurengou] European Union
家族連れ[kazokuzure] taking the family along
関連[kanren] relation
関連会社[kanrengaisha] associated company

基地閉鎖[kichiheisa] (military) base closing
金鎖[kingusari] golden chain
鎖国[sakoku] national isolation
鎖骨[sakotsu] collarbone
鎖樋[kusaritoi] rain chain (hanging from a gutter and functioning as downspout, often made of ornamental cups)

再封鎖[saifuusa] reblocking
道路封鎖[dourofuusa] roadblock
封鎖[fuusa] blockade
鎖す[sasu] to shut