noun
doomsday
A loanword from English, used in Japanese to refer to the end of the world, a catastrophic event, or a final judgment day, often in fiction, games, or metaphorical contexts.
その映画はドゥームズデイをテーマにしている。
That movie has a doomsday theme.
ドゥームズデイ・カルトは終末を信じている。
Doomsday cults believe in the apocalypse.
終末 is the native Japanese word for 'end' or 'final days', while ドゥームズデイ is a direct loanword with a stronger nuance of catastrophic final judgment, often used in pop culture.
最後の審判 specifically refers to the Christian concept of the Last Judgment, whereas ドゥームズデイ is a broader, more secular term for doomsday or apocalypse.
Borrowed from English 'doomsday'.