noun
Tux
tuhks
noun
1
Informal shortening of tuxedo, a formal dinner jacket suit.
"He rented a tux for the wedding."
name
1
The penguin mascot of the Linux operating system.
"Tux appears in the boot screen of many Linux distributions."
How to Use Tux
Learner’s notesIn plain EnglishShort for tuxedo (a formal suit); also the name of the Linux penguin mascot.
When to use it
As "dinner suit", it is informal and mainly American — British English favours "dinner jacket" or "black tie".
Common pairings
rent a tux
wear a tux
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Etymology
As clothing, a clipped form of "tuxedo". As the Linux mascot, coined from "Torvalds Unix" (after Linux creator Linus Torvalds), with a nod to the tuxedo-like markings of penguins.