Tiếng Việt · Word Attested

thành thử

[tʰajŋ̟˨˩ tʰɨ˧˩] 🎙 Say it

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

Meaning · English

(conjunction) this is the reason that, this is why, and so

Conjunction

Where it’s used: Used Toàn quốc & hải ngoại · Vietnam-wide & diaspora

Examples

[…] thành-thử cái xấu, cái dở của mình, thì vị tất đã bỏ đi được,[…][…] which is the reason why the ugly and the bad in us is not automatically done away with, […]

Wiktionary example (CC BY-SA 4.0)

Sources & notes

Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗

Common questions

What does “thành thử” mean?

(conjunction) this is the reason that, this is why, and so

Is “thành thử” formal or informal?

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

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