time / hour / the hours or time when something happens

inaudible, quiet, silent / calm, tranquil / still, stopped and not moving / not busy

beautiful

(archaic) beautiful

evening calm (lack of winds), found in coastal regions

either one of the two Kamikaze-class destroyers of the Imperial Japanese Navy (see Japanese destroyer Yūnagi on Wikipedia.Wikipedia) / a female given name / a place name

a sea, an ocean / a lake / (figuratively) an object covering over a large area, as in 血の海 (chi no umi, “pool of blood”) or 火の海 (hi no umi, “sea of fire”)

mirror

timetable

an hour-long period