小匙[kosaji] teaspoon
大匙[oosaji] tablespoon
茶匙[chasaji] teaspoon
飯匙倩[habu] habu (East Asian pit viper of genus Trimeresurus)
匙加減[sajikagen] prescription

匙を投げる[sajiwonageru] to give up (something as hopeless)
本飯匙倩[honhabu] Okinawan habu (Trimeresurus flavoviridis)
台湾飯匙倩[taiwanhabu] Taiwanese habu (Trimeresurus mucrosquamatus)
石匙[ishisaji] stone knife (Jomon-period tool, shaped like a rice spoon)

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