屎尿[shinyou] excreta
鼻屎[hanakuso] nasal discharge
屎尿処理[shinyoushori] sewage disposal
目屎[mekuso] eye discharge or mucus

耳屎[mimikuso] earwax
鉄屎[kanakuso] slag
目糞鼻屎を笑う[mekusohanakusowowarau] the pot calling the kettle black (lit: for the sleep in one's eyes to laugh at the snot in one's nose)
歯屎[hakuso] (dental) plaque

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)