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Synonyms

Gray

1 American  
[grey] / greɪ /

noun

  1. Asa 1810–88, U.S. botanist.

  2. Robert, 1755–1806, U.S. explorer and sea captain: discovered the Columbia River.

  3. Thomas, 1716–71, English poet.


gray 2 American  
[grey] / greɪ /
especially British, grey

adjective

grayer, grayest
  1. of a color between white and black; having a neutral hue.

  2. dark, dismal, or gloomy.

    gray skies.

  3. dull, dreary, or monotonous.

  4. having gray hair; gray-headed.

  5. pertaining to old age; mature.

  6. Informal. pertaining to, involving, or composed of older persons.

    gray households.

  7. old or ancient.

  8. indeterminate and intermediate in character.

    The tax audit concentrated on deductions in the gray area between purely personal and purely business expenses.


noun

  1. any achromatic color; any color with zero chroma, intermediate between white and black.

  2. something of this color.

  3. gray material or clothing.

    to dress in gray.

  4. an unbleached and undyed condition.

  5. (often initial capital letter) a member of the Confederate army in the American Civil War or the army itself.

  6. a horse of a gray color.

  7. a horse that appears white but is not an albino.

verb (used with or without object)

  1. to make or become gray.

gray 3 American  
[grey] / greɪ /

noun

Physics.
  1. the standard unit of absorbed dose of radiation (such as x-rays) in the International System of Units (SI), equal to the amount of ionizing radiation absorbed when the energy imparted to matter is 1 J/kg (one joule per kilogram). Gy


Gray 1 British  
/ ɡreɪ /

noun

  1. Thomas. 1716–71, English poet, best known for his Elegy written in a Country Churchyard (1751)

"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

gray 2 British  
/ ɡreɪ /

noun

  1.  Gy.  the derived SI unit of absorbed ionizing radiation dose or kerma equivalent to an absorption per unit mass of one joule per kilogram of irradiated material. 1 gray is equivalent to 100 rads

"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

gray 3 British  
/ ɡreɪ /

adjective

  1. a variant spelling (now esp US) of grey

"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

gray Scientific  
/ grā /
  1. The SI derived unit used to measure the energy absorbed by a substance per unit weight of the substance when exposed to radiation. One gray is equal to one joule per kilogram, or 100 rads. The gray is named after British physicist Louis Harold Gray (1905–1965).


gray Idioms  

    More idioms and phrases containing gray


Usage

What’s the difference between gray and grey? Gray and grey are simply different spellings of the same word, which refers to the color halfway between black and white (among other more figurative meanings).In popular use, the two spellings are used interchangeably, though one spelling is often preferred in many places. The spelling gray is much more common in American English, while grey is more common in British English.Remember: spell gray with an a in America, and spell grey with an e in England (among other places).Want to learn more? Read the full breakdown of the difference between gray and grey.

Other Word Forms

  • grayish adjective
  • grayly adverb
  • grayness noun
  • ungrayed adjective

Etymology

Origin of gray1

First recorded before 900; Middle English grei, grai, Old English grǣg, grēg; cognate with German grau, Old Norse grār

Origin of gray1

First recorded in 1975; named in honor of Louis Harold Gray (1905–65), English radiobiologist

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.

Jackson jumps into her gray Nissan Quest minivan that families call the “bus,” shifting into her hourlong driver role.

From Los Angeles Times

Investors could choose to follow the same noise/overreaction paradigm in 2026, which means exiting next year with more gray hair—or less hair altogether.

From Barron's

Investors could choose to follow the same noise/overreaction paradigm in 2026, which means exiting next year with more gray hair—or less hair altogether.

From Barron's

Neves Valente balked at getting into the gray sedan while John was behind him, John told police.

From The Wall Street Journal

The landscape of his Welsh Decembers is mythically cold and gray.

From The Wall Street Journal