Tiếng Việt · Slang Attested

chs

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In real, traceable use. Part of the curated seed collection; community review is coming.

Both English Tiếng Việt

Meaning · English

Texting shortcut for “chả hiểu sao” — no idea why / somehow.

Nghĩa · Tiếng Việt

không rõ tại sao

Machine-translated — suggest a fix

Where it’s used: Used Toàn quốc & hải ngoại · Vietnam-wide & diaspora Origin Mạng xã hội · Vietnamese internet culture

Sources & notes

Listed in vi.wikipedia “Teencode” (CC BY-SA 4.0, retrieved 2026-07-30).

Common questions

What does “chs” mean?

Texting shortcut for “chả hiểu sao” — no idea why / somehow.

Is “chs” formal or informal?

chs is generally informal; connotation: texting shorthand.

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