grains; lumps; drops; grainy; bumpy; coarse
(single) bean; pea; something very small; tiny speck
coarse anko; coarse sweet red bean paste
large drop (of rain, sweat, tears, etc.); large grain-like object (e.g. grape, cherry)
one grain; one drop; one bead
small (of a grain or berry, etc.); small (in stature); limited (in abilities)
two grains; two drops; two bead
poppy seed; something extremely tiny
millet grain; something extremely tiny
small silver coin of the Edo period