Diamond Definition

dīə-mənd, dīmənd
diamonds
noun
diamonds
A usually colorless, crystalline mineral consisting of pure carbon, with nearly perfect cleavage and the greatest hardness of any substance: unflawed, transparent stones are cut into gems of great brilliance, and less perfect forms are used for cutting tools, abrasives, etc.
Webster's New World
A gem or other piece cut from this mineral.
Webster's New World
Any of a suit of playing cards marked with such figures in red.
Webster's New World
A lozenge-shaped plane figure (♢)
Webster's New World
Any rhombus, including a square, oriented with one point at the top and one at the bottom.
A baseball diamond.
Webster's New World
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adjective
Of, like, or set with a diamond or diamonds.
Webster's New World
Marking or celebrating the 60th, or sometimes 75th, year.
A diamond jubilee.
Webster's New World
Synonyms:
verb
To adorn with or as with diamonds.
Webster's New World
pronoun
A female given name of modern usage, from the name of the gem.
Wiktionary
idiom
diamond in the rough
  • One having exceptionally good qualities or the potential for greatness but lacking polish and refinement.
American Heritage
diamond in the rough
  • a diamond in its natural state
  • a person or thing of fine quality but lacking polish
Webster's New World
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Other Word Forms of Diamond

Noun

Singular:
diamond
Plural:
Diamonds

Idioms, Phrasal Verbs Related to Diamond

Origin of Diamond

  • Middle English diamaunt from Old French diamant from Medieval Latin diamās diamant- alteration of Latin adamās adamant

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French diamant, from Late Latin diamas, from Latin adamas, from Ancient Greek ἀδάμας (adamas, “diamond”).

    From Wiktionary

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