one day

an army ant

one small animal

(rare) the first day of the month

small animals / rolls of cloth / (historical) numbers of 銭(せん) (sen)

counter for small animals

(military) armed forces such as the army, the navy, or the air force

to eat / (archaic, humble) to eat or drink

an insect (arthropod of class Insecta)

one day, 24 hours / the daytime, the period from dawn until dusk / (figuratively) a short period of time / one day, someday, an unspecified day / the first day of the month