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

河豚[fugu] puffer fish
海豚[iruka] dolphin (or other small toothed whales, such as porpoises, belugas, etc.)
焼き豚[yakibuta] roast pork
酢豚[subuta] sweet-and-sour pork
鼠海豚[nezumiiruka] harbor porpoise (harbour)

土豚[tsuchibuta] aardvark (Orycteropus afer)
豚に真珠[butanishinju] (cast) pearls before swine
豚カツ[tonkatsu] pork cutlet
豚小屋[butagoya] pigsty