English · Phrasal verb Attested

fight up

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

Sense 1

Both English Tiếng Việt

Meaning · English

To fight (someone) aggressively.

Nghĩa · Tiếng Việt

đấu tranh quyết liệt

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 endeavor or struggle to do.

Nghĩa · Tiếng Việt

cố gắng hoặc đấu tranh để làm

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 “fight up” mean?

To fight (someone) aggressively.

Is “fight up” formal or informal?

fight up is generally slang.