English · Slang Attested

MU

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

Sense 1

Both English Tiếng Việt

Meaning · English

Initialism of mutual understanding

Nghĩa · Tiếng Việt

sự hiểu biết lẫn nhau

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

A person engaged in a situationship

Nghĩa · Tiếng Việt

người trong một mối quan hệ không rõ ràng

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 “MU” mean?

Initialism of mutual understanding

Is “MU” formal or informal?

MU is generally slang.

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