１日
N5いちにち
一日
[ichinichi]
Meanings
1.NounAdverb
one day
2.AdverbNoun
all day (long); the whole day; from morning till night
3.Noun
first day of the month
Other Readings
「１日」 has another reading with different meanings.
Examples
１日に三回ご飯を食べる。
I eat three meals a day.
１日じゅう家にいたかった。
I wanted to stay home all day.
１日だけの休みでも嬉しいです。
Even just one day off makes me happy.