one day

(rare) the first day of the month

(anglicism, informal or humorous) good morning!

to work hard and do one's best to achieve a goal / to strive unrelentingly in the face of difficulty, to persevere

(imperative, exhortation) do your best, good luck, hang in there, come on, don't give up, keep going

conjunctive form of 頑張る (ganbaru) [godan] / do your best, good luck, keep at it, don't give up, hang in there

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

(archaic) (as for) today

today, this day / nowadays

Same as こんにち above