铁证如山 (tiě zhèng rú shān) — irrefutable evidence; conclusive proof

Definition

Literally 'ironclad evidence like a mountain' — a fixed idiom emphasizing proof so solid it cannot be questioned. Used for court cases, scandals, or debates where the evidence is overwhelming.

idiom
irrefutable evidenceconclusive proof

Examples

  • 铁证如山,。
    Miàn duì tiě zhèng rú shān, tā zhōng yú chéng rèn le zì jǐ de zuì xíng.
    Faced with irrefutable evidence, he finally admitted his crime.
  • 铁证如山,。
    Jǐng fāng yǐ jīng zhǎng wò le tiě zhèng rú shān, àn jiàn hěn kuài jiù néng gào pò.
    The police have already obtained conclusive evidence, and the case will be solved soon.
  • 铁证如山,?
    Zhè xiē zhèng jù tiě zhèng rú shān, nǐ hái yǒu shén me hǎo shuō de?
    This evidence is ironclad. What else do you have to say?

Origin

Compound word
构词法gòucífǎ
主谓zhǔwèiSubject + predicate

A small sentence frozen into a word: something, and what it does or is.

铁证iron evidence
铁tiěiron证zhèngevidence
偏正Modifier + head
如山like a mountain
如rúlike山shānmountain
动宾Verb + object

The 铁证 is so firm that it is 如山, like a mountain.

Characters in this word

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 鐵; 铁 is its simplified writing.

Meaning part形符xíngfú
金金jīnmetal
Sound part声符shēngfú
𢧤
𢧤𢧤鐵tiě
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 鐵 pairs 金 (metal) with 𢧤 as a sound part; the simplified 铁 is a later shorthand.

Open 铁 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

This origin belongs to the traditional form 證; 证 is its simplified writing.

Meaning part形符xíngfú
Sound part声符shēngfú
登
登dēng證zhèng
Close in sound todayThe sound part was a clue two thousand years ago — it often still helps, but not always.

The traditional form 證 pairs 言, a words/speech part, with 登 as a sound clue; the simplified 证 is a later shorthand.

Open 证 →

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
口口kǒumouth
Sound part声符shēngfú
女
女nǚ如rú
Same sound today

如 is built from 口 (mouth) for its meaning and 女 (woman) for its sound.

Open 如 →

A drawing of the thing itself, worn down over three thousand years into a few strokes.

山 shows three mountain peaks side by side.

Open 山 →

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