懐旧[kaikyuu] recalling the old days
旧ソ連[kyuusoren] former Soviet Union
旧悪[kyuuaku] past misdeeds
旧衣[kyuui] worn-out clothes
旧詠[kyuuei] ancient poems

旧怨[kyuuen] old grudge
旧縁[kyuuen] old relationship
旧恩[kyuuon] old favors
旧仮名遣[kyuukanazukai] former (i.e. before the post-WWII reforms) kana usage in writing the readings of kanji

愛蔵[aizou] treasured
愛蔵版[aizouban] favourite printing (edition)
塩蔵食品[enzoushokuhin] salted food
家蔵[kazou] household possessions
旧蔵[kyuuzou] one's old possessions

虚空蔵[kokuuzou] Akasagarbha (bodhisattva)
穴蔵[anagura] cellar
蔵う[shimau] to finish
死蔵[shizou] hoarding
収蔵[shuuzou] garnering