Translation guide
The concept of something lasting forever or for an unlimited time. In Japanese, this is expressed through nouns, adverbs, and set phrases rather than a single direct equivalent.
Expressing that something continues forever without end.
The most common and general word for 'eternity' or 'perpetuity'. Used in both literal and figurative contexts.
Love lasts forever.
Similar to 永遠, but often used in more concrete or technical contexts, like 'permanent' or 'perpetual'.
This bridge will remain in perpetuity.
A more emphatic and literary phrase meaning 'for all eternity' or 'forever and ever'.
That memory will be passed down in perpetuity.
Referring to a legal or financial arrangement that lasts indefinitely, such as a trust or annuity.
Using 'perpetuity' informally to mean a very long time, not literally forever.
The English word 'perpetuity' is often used in formal or legal contexts. In everyday Japanese, it's more natural to use adverbs like ずっと or いつまでも rather than trying to directly translate the noun.
The fund is managed in perpetuity.
この幸せがいつまでも続きますように。
May this happiness last in perpetuity.