English · Slang Attested

USUM

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

Both English Tiếng Việt

Meaning · English

Initialism of Pokémon Ultra Sun and Ultra Moon.

Nghĩa · Tiếng Việt

từ viết tắt của Pokémon Ultra Sun và Ultra Moon

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).

Common questions

What does “USUM” mean?

Initialism of Pokémon Ultra Sun and Ultra Moon.

Is “USUM” formal or informal?

USUM is generally slang.

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