one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

eight, 8

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

watering the plants

one person

(idiomatic) sinking or swimming; all or nothing

一日, 1日: one day

地味: quality of the soil / 魑魅: a demon formed from the spirit of mountains and forests

the eighth day of the month / eight days

snack; treat; refreshments