noun
Uncommon
aux
AWKS
Aux (noun) means an auxiliary input on a sound system, used to plug in an external audio device. Example: “Just plug your phone into the aux and we can play your playlist.”
noun
1
An auxiliary input on a sound system, used to plug in an external audio device.
"Hey, pass the aux. I'll play some music from my phone."
"BE AWARE, reverbs should be in the end of your chain, as sends to auxes. Setting them first doesn’t mean they will be first in the chain. You just set up the auxes, then get back to the vocal channel to add EQs, compressors, etc."
— @natemixing, Twitter (2025)
"Just plug your phone into the aux and we can play your playlist."
"The car stereo has a USB port and an aux, so any phone will work."
"My cable is too short to reach the aux at the back of the speaker."
How to use aux
Learner’s notesIn plain EnglishThe extra audio jack on a stereo or speaker that lets you connect another device.
When to use it
Informal shortening of "auxiliary," mainly used for car stereos and speakers.
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Word forms
- Plural
- auxes
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Just plug your phone into the _____ and we can play your playlist.
Rhymes for aux
See all rhymes for aux →Frequently asked questions
What does “aux” mean?
The word “aux” means an auxiliary input on a sound system, used to plug in an external audio device. In plain terms, the extra audio jack on a stereo or speaker that lets you connect another device.
How do you pronounce “aux”?
“Aux” is pronounced AWKS (/ˈɔks/ in IPA).
How do you use “aux” in a sentence?
Here is “aux” used in a sentence: “Just plug your phone into the aux and we can play your playlist.”
What part of speech is “aux”?
“Aux” is a noun.
Is “aux” a common word?
“Aux” is an uncommon word in modern English.
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