1

diamond

noun, often attributive di·a·mond \ ˈdī-(ə-)mənd \
Updated on: 9 Nov 2017

Definition of diamond

1 a :native crystalline carbon that is the hardest known mineral, that is usually nearly colorless, that when transparent and free from flaws is highly valued as a precious stone, and that is used industrially especially as an abrasive; also :a piece of this substance
b :crystallized carbon produced artificially
2 :something that resembles a diamond (as in brilliance, value, or fine quality)
3 :a square or rhombus-shaped figure usually oriented with the long diagonal vertical
4 a :a playing card marked with a stylized figure of a red diamond
b diamonds plural in form but singular or plural in construction :the suit comprising cards marked with diamonds
5 :a baseball infield; also :the entire playing field

Examples of diamond in a Sentence

  1. a necklace studded with diamonds and rubies

  2. The ruby was surrounded by a ring of diamond.

  3. The children cut the fabric into diamonds.

  4. one heart, two diamonds, and two clubs

  5. He played the queen of diamonds.

Recent Examples of diamond from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diamond.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

The largest uncut diamond ever found on earth was the 3,106-carat Cullinan diamond. It was mined in South Africa in 1905 and cut to form the 530-carat “Star of Africa,” which is now part of the British Crown Jewels. But that is nothing compared with the biggest in the known universe. In 2004 American astronomers discovered a diamond 2,500 miles (4,000 km) wide, weighing 10 billion trillion trillion carats, at the heart of a white dwarf star eight light years away in the constellation Centaurus. The star is unofficially known as Lucy, after the Beatles song “Lucy in the Sky with Diamonds.”

Origin and Etymology of diamond

Middle English diamaunde, from Middle French diamand, from Late Latin diamant-, diamas, alteration of Latin adamant-, adamas hardest metal, diamond, from Greek


2

diamond

verb

Definition of diamond

transitive verb
:to adorn with or as if with diamonds

Recent Examples of diamond from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diamond.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diamond

1751


3

diamond

adjective

Definition of diamond

:of, relating to, or being a 60th or 75th anniversary or its celebration
  • diamond jubilee

Examples of diamond in a Sentence

  1. the celebration of Queen Victoria's diamond jubilee in 1897

Recent Examples of diamond from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'diamond.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of diamond

1872


Diamond

biographical name Di·a·mond \ ˈdī-(ə-)mənd \

Definition of Diamond

Peter A(rthur) 1940–     American economist


DIAMOND Defined for English Language Learners

diamond

noun

Definition of diamond for English Language Learners

  • : a very hard usually colorless stone that is a form of carbon and is used especially in jewelry

  • : a shape that is formed by four equal straight lines and that has two opposite angles that are smaller than a right angle and two opposite angles that are larger than a right angle

  • : a playing card that is marked with a red diamond shape


diamond

adjective

Definition of diamond for English Language Learners

  • : of or relating to the 60th or 75th anniversary of an important event (such as a marriage)


DIAMOND Defined for Kids

diamond

noun di·a·mond \ ˈdī-ə-mənd , ˈdī-mənd \

Definition of diamond for Students

1 :a very hard mineral that is a form of carbon, is usually nearly colorless, and is used especially in jewelry
2 :a flat figure ◊ like one of the surfaces of certain cut diamonds
3 :infield 1


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