hai năm rõ mười
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
Two fives make a plain ten — obvious beyond any need of proof.
Literally: two fives clearly ten
Examples
Chứng cứ hai năm rõ mười.The evidence is two-fives-make-ten plain.
Editorial example (VI sweep batch 040, illustrative)
Sources & notes
Discovered via Nam ngạn chích cẩm (Phạm Quang Sán, 1918; public domain, via vi.wikisource); retrieved 2026-08-01. Source: source ↗ Attested in Nam ngạn chích cẩm (Phạm Quang Sán, 1918). Definition is an original editorial synthesis, not copied from the source.
Common questions
What does “hai năm rõ mười” mean?
Two fives make a plain ten — obvious beyond any need of proof. Literally: two fives clearly ten
Is “hai năm rõ mười” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.