九穀[kyuukoku] the nine grains
五穀[gokoku] the 5 grains (wheat, rice, beans, millet (awa and kibi))
穀食[kokushoku] cereal diet
穀倉[kokusou] granary
穀物[kokumotsu] grain

穀粉[kokufun] grain (rice) flour
穀粒[kokuryuu] kernel
穀類[kokurui] grains
脱穀[dakkoku] threshing (e.g. rice)
脱穀機[dakkokuki] threshing machine

御食い初め[okuizome] weaning ceremony
食っ付く[kuttsuku] to adhere to
食っ付ける[kuttsukeru] to attach
ぼりぼり食べる[boriboritaberu] to eat with a munching or crunching sound
インスタント食品[insutantoshokuhin] instant foods

レトルト食品[retorutoshokuhin] packed and sterilised food
衣食[ishoku] food and clothing
衣食住[ishokujuu] necessities of life (food, clothing & shelter)
育児食[ikujishoku] baby food
一夜乞食[ichiyakojiki] (a) person made homeless by fire