天长地久
tiān cháng dì jiǔ
In real, traceable use. Part of the curated seed collection; community review is coming.
Traditional: 天長地久
As lasting as heaven and earth; for ever. Used mainly about love and friendship, in wishes and vows.
Lâu dài như trời đất, mãi mãi không đổi. Chủ yếu dùng để nói về tình yêu, tình bạn trong lời chúc và lời thề.
Register: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 061 (2026-11-13). Headword, Traditional form and pinyin checked against CC-CEDICT (CC BY-SA 4.0) source ↗ · Hán-Việt reading: Unihan kVietnamese source ↗ · Vietnamese cognate: Idiomer entry “thiên trường địa cửu” (thien-truong-dia-cuu). Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.
Equivalents & related
Common questions
What does “天长地久” mean?
As lasting as heaven and earth; for ever. Used mainly about love and friendship, in wishes and vows. Literally: heaven is long, earth is lasting
Is “天长地久” formal or informal?
天长地久 is generally neutral.