English · Slang Attested

AO3

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

Meaning · English

Abbreviation of Archive of Our Own.

Where it’s used: Used American English

LiveJournal and AO3 rely largely on tags, whilst Fanfiction.net has genre and character filters as well as a keyword search.

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).

Common questions

What does “AO3” mean?

Abbreviation of Archive of Our Own.

Is “AO3” formal or informal?

AO3 is generally slang.

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