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Definition of diamond

diamond

/ˈdaɪ.ə.mənd/
di · a · mond

Plural:diamonds
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diamond Lexical Profile

diamond Game Scores & Validity

• adjective

1

Made of, decorated with, or resembling a diamond.

Example

"The queen appeared at the royal gala wearing a spectacular diamond tiara."


2

Designating a sixtieth (or sometimes seventy-fifth) anniversary.

Example

"The university celebrated its diamond jubilee with a grand parade and a series of alumni events."

• noun

1

A precious stone consisting of a clear and typically colorless crystalline form of pure carbon, known as the hardest naturally occurring substance.

Example

"She inherited a stunning gold necklace set with brilliant cut diamonds."


2

A figure with four straight sides of equal length forming two opposite acute angles and two opposite obtuse angles; a rhombus.

Example

"The fabric featured a striking geometric pattern composed of interlocking triangles and diamonds."


3

A playing card of the suit conventionally marked with red, diamond-shaped symbols; in the plural, the suit itself.

Example

"He confidently played the king of diamonds to win the final trick of the game."

Synonyms
View all synonyms for diamond

Word Origin & Etymology

From Old French 'diamant', derived via Late Latin 'diamas' (an alteration of 'adamas') from ancient Greek 'adamas', meaning 'unconquerable' or 'invincible', referring to the stone's exceptional hardness.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Diamond. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/diamond
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