一言九鼎
yī yán jiǔ dǐng
In real, traceable use. Part of the curated seed collection; community review is coming.
Said of a person whose word carries great weight: what they say settles the matter and can be relied on. Used as praise for someone influential or true to their promises.
Một lời nặng tựa chín cái đỉnh đồng: lời nói rất có trọng lượng, đã nói ra là có giá trị và đáng tin. Dùng để khen người có uy tín, đã hứa là làm.
Register: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 062 (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 “nhất ngôn cửu đỉnh” (nhat-ngon-cuu-dinh). Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.
Equivalents & related
Common questions
What does “一言九鼎” mean?
Said of a person whose word carries great weight: what they say settles the matter and can be relied on. Used as praise for someone influential or true to their promises. Literally: a single word weighing nine cauldrons
Is “一言九鼎” formal or informal?
一言九鼎 is generally neutral.