ダン トン 
かたまり まる.い 
() group () association
                              
だんいん (n) group member
だんかい (n) mass, lump
だんけつ (n,vs) unity, union, combination
うちわ (n) fan
だんたい (n) organization, organisation, association
だんち (n) multi-unit apartments
だんちょう (n) leader of a delegation (body, party)

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字