A class representative, in the context of an elementary school or junior high school.

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

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

one week