Dictionary.com
Thesaurus.com
Jump To:
  • lux
    lux
    noun
    a unit of illumination, equivalent to 0.0929 foot-candle and equal to the illumination produced by luminous flux of one lumen falling perpendicularly on a surface one meter square. lx
  • Lux.
    Lux.
    abbreviation
    Luxembourg.

lux

1 American  
[luhks] / lʌks /

noun

Optics.
luces plural
  1. a unit of illumination, equivalent to 0.0929 foot-candle and equal to the illumination produced by luminous flux of one lumen falling perpendicularly on a surface one meter square. lx


Lux. 2 American  

abbreviation

  1. Luxembourg.


Lux. 1 British  

abbreviation

  1. Luxembourg

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lux 2 British  
/ lʌks /

noun

  1.  lx.  the derived SI unit of illumination equal to a luminous flux of 1 lumen per square metre. 1 lux is equivalent to 0.0929 foot-candle

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lux 3 British  
/ lʌks /

verb

  1. informal to clean with a vacuum cleaner

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lux Scientific  
/ lŭks /
luxes plural
  1. A SI derived unit of illuminance in photometry, equal to one lumen per square meter.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of lux

1885–90; < Latin lūx light 1

Compare meaning

How does lux compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

They’re both lux and comfortable, providing excellent noise cancellation and a great listening experience.

From Salon Nov. 20, 2025

If it’s streetwear, I still want it to look lux.

From Los Angeles Times Apr. 21, 2022

For context, direct sunlight can range from 32,000 to well over 100,000 lux.

From The Verge Feb. 9, 2022

Above, two towers will house 1,048 apartments with curved balconies and lux amenities.

From Seattle Times Nov. 12, 2021

In another letter, speaking of the title for this book, he continues:— It was suggested only by the motto of the Oriental Society, "Ex Oriente lux."

From Concerning Lafcadio Hearn With a Bibliography by Laura Stedman by Gould, George M. (George Milbrey)

The dressing ritual concludes as she puts on her ornate scarlet and gold jacket – the traje de luces, or suit of lights.

From The Guardian Mar. 16, 2017

He made his debut in Mexico in 1961 in a borrowed traje de luces, harbouring professional ambitions until he was gored and battered in Juarez by a beast named Conquistador.

From The Guardian Mar. 16, 2017

One January day, he wrote, in a mix of Spanish and English: “Hector olvido luces ‘on’ —dead battery” after I left my car lights on while studying at UC Irvine.

From Los Angeles Times May 3, 2013

All his successors gone before him hath done’t; and all his ancestors that come after him may: they may 15 give the dozen white luces in their coat.

From The Merry Wives of Windsor The Works of William Shakespeare [Cambridge Edition] [9 vols.] by Glover, John, librarian of Trinity College, Cambridge

All his successors gone before him have done't, and all his ancestors that come after him may; they may give the dozen white luces in their coat.

From The Sketch-Book of Geoffrey Crayon by Irving, Washington

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training