外柔内剛[gaijuunaigou] gentle but firm
吸金剛[kokongou] Hevajra
金剛[kongou] vajra (indestructible substance)
金剛薩堕[kongousatta] Vajrasattva
金剛手[kongoushu] Vajrapani

金剛石[kongouseki] diamond
剛の者[gounomono] very strong person
剛臆[gouoku] bravery and cowardice
剛果[gouka] valor and decisiveness (valour)
剛毅[gouki] fortitude

阿吽の呼吸[aunnokokyuu] the harmonizing, mentally and physically, of two parties engaged in an activity
ちゅうちゅう吸う[chuuchuusuu] to suck
化学吸着[kagakukyuuchaku] chemisorb
吸いこむ[suikomu] to inhale
吸いとる[suitoru] to suck up

吸付く[suitsuku] to stick to
吸う[suu] to smoke
吸引[kyuuin] absorption
吸気[kyuuki] inspiration
吸金剛[kokongou] Hevajra

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