安全保障条約[anzenhoshoujouyaku] US-Japan Security Treaty
違約[iyaku] breach of contract
違約金[iyakukin] penalty for contract breach
一粒子既約[ichiryuushikiyaku] one particle irreducible (physics)
化学兵器禁止条約[kagakuheikikinshijouyaku] chemical weapons ban treaty

仮条約[karijouyaku] provisional treaty
会う約束[auyakusoku] rendezvous
会員規約[kaiinkiyaku] membership agreement (e.g. for a credit card)
解約[kaiyaku] cancellation of contract
確約[kakuyaku] firm promise

比律賓[firippin] Philippines
佳賓[kahin] good guest
貴賓[kihin] noble visitor
迎賓館[geihinkan] reception hall (esp. for visiting state dignitaries)
国賓[kokuhin] state guest

主賓[shuhin] main guest
正賓[seihin] guest of honor
来賓[raihin] guest
来賓席[raihinseki] visitor's seats
賓客[hinkyaku] guest of honour

ト音記号[toonkigou] G clef
ハ音記号[haonkigou] C clef
ヘ音記号[heonkigou] F clef
哀音[aion] sad voices
異音[ion] allophone

異句同音[ikudouon] in concert
異口同音に[ikudouonni] in one voice
一音節[ichionsetsu] monosyllable
一口同音[ikkudouon] reading in unison
羽音[haoto] sound of flapping wings (of a bird)