enter

unit of measure / unit (an organized group) / academic credit

a box: a container with a lid / (archaic) a chamber pot for feces; (by extension) feces

to go in; to come in / 要る: to be necessary, to be required

to enter, go into, get into a place or a thing / to join a group or organization / to be contained (in), to be included (in) / to be a member of a group, set, category

box

Alternative spelling of 百均

sand

small rock / sand

Number of units, 1 of 100 million parts.