English · Phrasal verb Attested

run up on

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

Sense 1

Both English Tiếng Việt

Meaning · English

To approach with speed or forceful intensity

Nghĩa · Tiếng Việt

Tiếp cận với tốc độ hoặc cường độ mạnh

Machine-translated — suggest a fix

Where it’s used: Used American English

Hey, don't run up on me like that while my back's turned...I might accidentally deck you.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

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 confront with hostility

Nghĩa · Tiếng Việt

Đối mặt với sự thù địch

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 hit on (somebody).

Nghĩa · Tiếng Việt

Tán tỉnh ai đó

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 “run up on” mean?

To approach with speed or forceful intensity

Is “run up on” formal or informal?

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

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