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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.

She serves as a college reporting editor for the Harvard Crimson, where she reports on Harvard's admissions office and athletics department.

From The Wall Street Journal • Jul. 1, 2026

At Harvard it jumped from 3% to 21% in a decade, according to The Harvard Crimson, the university’s student newspaper.

From The Wall Street Journal • May 14, 2026

Crimson pleather booths line the walls, which are covered with vintage beer signs and framed portraits of Elvis Presley and Marilyn Monroe … and Guy Fieri, who visited in 2008.

From Los Angeles Times • May 12, 2026

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

From Barron's • Apr. 20, 2026

Up above, shop owners had purchased Crimson orbs for their businesses.

From "A Wish in the Dark" by Christina Soontornvat

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