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

価額[kagaku] valuation
額が少ない[gakugasukunai] insufficient (money, etc.)
額ぶち[gakubuchi] frame (e.g. picture frame, decorative door frame, etc.)
額面[gakumen] face value

額面割れ[gakumenware] drop below par
割当額[wariategaku] allotment
巨額[kyogaku] great sum
金額[kingaku] amount of money