English · Phrasal verb Attested

cloud up

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

Sense 1

Both English Tiếng Việt

Meaning · English

To become cloudy or overcast.

Nghĩa · Tiếng Việt

Trở nên nhiều mây hoặc u ám

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 become cloudy or clouded.

Nghĩa · Tiếng Việt

Trở nên nhiều mây hoặc bị che khuất

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 blank or confused due to shock or trauma.

Nghĩa · Tiếng Việt

Trở nên trắng hoặc bối rối do sốc hoặc chấn thương

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 “cloud up” mean?

To become cloudy or overcast.

Is “cloud 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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