going back to sleep (e.g. after waking up in the morning)

(geometry) sphericity

double dipping

a kunoichi (female ninja) / Synonym of 女 (onna, “woman”)

a handful

one's lifetime

one term, first term

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