衛生: hygiene, sanitary, health / 衛星: (astronomy) satellite / 永世: eternity, permanence, perpetuity, immortality / 永逝: death, demise

線形性: linearity

曳船: tugboat

兵制: a military system / 兵勢: military force, military strength / 幣制: a monetary or currency system / 平正: fair and correct / 平生: completely usual, ordinary / 平静: serenity, tranquility, peace

平成: the Japanese era under Emperor Akihito (1989–2019)

緯線: parallel (line of latitude)

指定席: reserved seat

upper, over

the start / a high place; the top / one with higher rank

the first volume in a two- or three-volume set