Short for 'auxiliary,' something additional or supplementary that helps support the main thing.
Shortened form of 'auxiliary,' from Latin 'auxiliaris' meaning 'helpful,' derived from 'auxilium' (help). Used as a modern abbreviation in audio and technical contexts.
In music production and cars, 'aux' cables and ports are considered secondary, but they're often the backup that saves everything—the underrated lifelines of modern devices!
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