Tiếng Việt · Proverb Candidate

Biết mặt dọc mặt ngang

Proposed by a contributor, not yet supported by evidence.

Meaning · English

Know someone's true nature and behavior

Literally: Know vertical face and horizontal face

Examples

Anh ấy biết mặt dọc mặt ngang của chị ấy sau nhiều năm làm việc cùng nhauHe knew her true nature and behavior after working with her for many years

AI-drafted example auto-approved by rule (illustrative, not a corpus attestation)

Sources & notes

Headword listed in the vdict.com proverb dictionary index (discovery source; headword only — no source content copied). Entered as candidate 2026-08-05; definition pending editorial review. Definition drafted by AI (@cf/meta/llama-3.3-70b-instruct-fp8-fast) and auto-approved by rule on 2026-08-05; pending editor spot-check.

Common questions

What does “Biết mặt dọc mặt ngang” mean?

Know someone's true nature and behavior Literally: Know vertical face and horizontal face

Is “Biết mặt dọc mặt ngang” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.

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