草臥れる[kutabireru] to get tired
遺草[isou] posthumous works
一年草[ichinensou] annual (plant)
詠草[eisou] draft poem
下草[shitakusa] undergrowth

仮名草紙[kanazoushi] story in the kana
伽草子[togizoushi] fairy-tale book
海草[kaisou] marine plant
乾草[kansou] hay
甘草[kanzou] liquorice

お屠蘇[otoso] New Year's sake
蘇維埃[sobieto] soviet
蘇連[soren] (former) Soviet Union
紫蘇[shiso] shiso
青紫蘇[aojiso] green beefsteak plant

蘇り[yomigaeri] resurrection
中蘇[chuuso] China and Soviet Russia
蘇生[sosei] rebirth
蘇える[yomigaeru] to be resurrected
蘇枋[suou] sappanwood (Caesalpinia sappan)

黄鉄鉱[outekkou] iron pyrites
可鍛鉄[katantetsu] malleable iron
狭軌鉄道[kyoukitetsudou] narrow-gauge railway
近鉄[kintetsu] Kinki Nippon Tetsudou (railway co.)
剣付き鉄砲[kentsukideppou] fixed bayonet

甲鉄[koutetsu] armor
甲鉄艦[koutetsukan] armored ship
甲鉄板[koutetsuban] armor plate
鋼鉄[koutetsu] steel
国鉄[kokutetsu] national railway (esp. Japan National Railways)