亜属[azoku] subgenus
帰属[kizoku] belonging to
貴金属[kikinzoku] precious metal
近縁属[kinenzoku] related genera
金属[kinzoku] metal

金属間[kinzokukan] intermetallic
金属探知機[kinzokutanchiki] metal detector
軍属[gunzoku] civilian in military employ
繋属[keizoku] relationship
係属中[keizokuchuu] pending (e.g. legal case)

片口鰯[katakuchiiwashi] Japanese anchovy (Engraulis japonica)
半片[hanpen] pounded fish cake
鴉片窟[ahenkutsu] opium den
一日片時[ichinichihenji] short time
一片[ippen] (a) slice

花片[kahen] petal
欠片[kakera] fragment
跡片付け[atokatazuke] tidying up
砕片[saihen] debris
細片[saihen] crumbling

御金[okane] money
金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
違約金[iyakukin] penalty for contract breach
一刻千金[ikkokusenkin] every moment is precious
一字千金[ichijisenkin] word of great value

一時金[ichijikin] lump sum
一時賜金[ichijishikin] lump-sum grant
引き金を引く[hikiganewohiku] to pull the trigger
引当金[hikiatekin] reserves
隠れ借金[kakureshakkin] hidden debts