独りで[hitoride] alone
独り芝居[hitorishibai] one man show
独り舞台[hitoributai] performing solo (by oneself)
独り歩き[hitoriaruki] walking alone
曲独楽[kyokugoma] top

軍部独裁[gunbudokusai] military dictatorship
孤独[kodoku] isolation
国家独占[kokkadokusen] state monopoly
宗教的独立性[shuukyoutekidokuritsusei] religious independence
単独[tandoku] sole

圧し石[oshiishi] stone weight
一石[isseki] one game (of go)
一石二鳥[issekinichou] killing two birds with one stone
英国石油[eikokusekiyu] British Petroleum
下石[shitaishi] nether millstone

化粧石鹸[keshousekken] toilet soap
化石[kaseki] fossil
化石学[kasekigaku] paleontology
化石層[kasekisou] fossil bed
化石燃料[kasekinenryou] fossil fuel

飛行の三鈷[higyounosanko] three-pronged vajra flung by Kukai on his return from China to determine the Holy Land of Esoteric Buddism
三鈷[sanko] trident vajra
独鈷[tokko] tokko

独鈷石[tokkoishi] ground stone tool from the late Jomon period (named after its similarity to the Buddhist tokko)
雷鈷[raiko] ground stone tool from the late Jomon period