minimum, lowest

to hold back; to suppress; to contain

Clipping of ダウン症候群 (Daun shōkōgun, “Down syndrome”).

needed, necessary

need, necessity

system

going down, fall, decrease / being down with a disease, being unable to work due to sickness / being knocked down in boxing / a machine being down, failing to work

go down, fall, decrease / be down with a disease, be unable to work due to sickness / be knocked down in boxing / go down, malfunction

down (feathers)

(sports or in compounds) time