all day

sex, gender / (grammar) gender

the first day of the month (solar or lunar calendar)

(literary) one day, 24 hours / (literary) the daytime, the period from dawn until dusk / (literary) (figuratively) a short period of time

(obsolete) one day, 24 hours / (obsolete) the daytime, the period from dawn until dusk

(rare, obsolete) (all senses appear to be identical as for hitohi above)

Human day; also known as 七草(ななくさ)の節句(せっく) (nanakusanosekku, “the festival of seven herbs”); one of the five seasonal festivals (五節句 (gosekku). It is celebrated on January 7.

man-day

a man / a son

just