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crimson

American  
[krim-zuhn, -suhn] / ˈkrɪm zən, -sən /

adjective

  1. deep purplish-red.

  2. sanguinary.


noun

  1. a crimson color, pigment, or dye.

verb (used with or without object)

crimsons, present (3rd person singular) crimsoned, past participle, past crimsoning present participle
  1. to make or become crimson.

crimson British  
/ ˈkrɪmzən /

noun

    1. a deep or vivid red colour

    2. ( as adjective )

      a crimson rose

"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

verb

  1. to make or become crimson

  2. (intr) to blush

"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

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Etymology

Origin of crimson

First recorded in 1375–1425; late Middle English cremesin, cremesie, crensein, crim(e)sin, from Medieval Latin cremesīnus, ultimately from Arabic qirmizī, equivalent to qirmiz + a suffix indicating relationship or origin; see origin at kermes; see also carmine, cramoisy

Explanation

Crimson is a deep, vivid shade of red. You could describe flowers, blood, or blushing cheeks as crimson. The ruby red color crimson shows up brilliantly in nature, in the form of flowers, birds, and insects. In fact, it was an insect that led to the word crimson in the first place; an insect called kermes was used for centuries to make a deep red dye, which was called cremesin in Old Spanish and eventually became crimson.

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Vocabulary lists containing crimson

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.

Simpson began the practice of recording himself at Alabama, where he was the starter in the last of his four seasons with the Crimson Tide.

From Los Angeles Times • Jun. 22, 2026

The orchestra might be short an oboe player; the school might want to fill a niche-major seat, or be seeking full-pay students, said Arkesh Patel, chief operating officer of admissions consultant Crimson Education.

From The Wall Street Journal • May 11, 2026

Simpson impressed as the starter for the Crimson Tide last year, throwing 28 touchdowns with only five interceptions.

From The Wall Street Journal • Apr. 24, 2026

Cook had far more success in “replacing a legend” than his rival Crimson Tide.

From Barron's • Apr. 20, 2026

Crimson doors are spaced out every few steps, matching the rug that runs down the center of the hardwood floor.

From "Amari and the Night Brothers" by B.B. Alston

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