completion, accomplishment

one, 1 / the first in order, foremost / the beginning / the best / a kind of; one of something / (card games) an ace / unity / the bottom string of a shamisen or other Japanese musical instrument

inside, within (physical location) / between, among / while, during, inside or within a span of time / (when used possessively) one's own, my, our

sooner or later / eventually / before long

a year

寛一: a male given name

誠一: a male given name / 精一: a male given name / 聖一: a male given name / 成一: a male given name / 清一: a male given name

complete

nth-year student or pupil

A solar year, the time it takes the Earth to complete one revolution of the Sun (between 365.24 and 365.26 days depending on the point of reference)