necessary; needed; essential; necessity; need; requirement
bathtub; boat with a bathtub rented to customers (Edo period)
degree (angle, temperature, scale, etc.); counter for occurrences; strength (of glasses); glasses prescription; alcohol content (percentage); alcohol by volume; extent
to be worried; to be troubled
to call out (to); to call; to summon (a doctor, etc.); to invite; to designate; to name; to garner (support, etc.)
voice; singing (of a bird); chirping (of an insect); voice; opinion (as expressed in words); sound; sense (of something's arrival)
3rd day of the month; three days