aux

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

Meaning · English

The auxiliary audio connector of a sound system.

Register: slang

Where it’s used: Used American English

Examples

Hey, pass the aux. I'll play some music from my phone.

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 “aux” mean?

The auxiliary audio connector of a sound system.

Is “aux” formal or informal?

aux is generally slang.