English · Phrasal verb Attested

smarten up

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

Sense 1

Both English Tiếng Việt

Meaning · English

To wear smart clothes and look more stylish

Nghĩa · Tiếng Việt

Mặc quần áo đẹp và phong cách hơn

Machine-translated — suggest a fix

Where it’s used: Used American English

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Both English Tiếng Việt

Meaning · English

To make something look smart or smarter.

Nghĩa · Tiếng Việt

Làm cho thứ gì đó nhìn đẹp hơn

Machine-translated — suggest a fix

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Both English Tiếng Việt

Meaning · English

To become less stupid or naive

Nghĩa · Tiếng Việt

Trở nên thông minh hoặc ít ngây thơ hơn

Machine-translated — suggest a fix

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

What does “smarten up” mean?

To wear smart clothes and look more stylish

Is “smarten up” formal or informal?

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

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