氏族 is read as しぞく (shizoku) and means clan.
しぞく
shizoku
しぞくせいど
family or clan system
うじな
(full) name
うじがみ
patron god
し
clan
うじこ
shrine parishioner
うじびと
lineal descendant
うじ
しぬ
to die
しのいけん
his opinion
うじこそうだい
parishioner representative
うじぶみ
ancient clan record (incl. their origins, their achievements, etc.)
しめいけん
right to use one's name