Grain

木目

(linear texture of material or surface)

種

tsubu

(single seed of grain)

穀物

kokumotsu

(harvested seeds of various grass-related food crops)

穀類

kokurui

(harvested seeds of various grass-related food crops)

粒

tsubu

(single seed of grain)

粒

tsubu

(single particle of a substance)