diamond

English Online Dictionary. What means diamond‎? What does diamond mean?

English

Etymology

From Middle English dyamaunt, from Old French diamant, from Late Latin diamās, from Latin adamās, from Ancient Greek ἀδάμᾱς (adámās, “diamond”). Doublet of adamant. The printing sense is a calque of Dutch diamant, used by Dirck Voskens who first cut it around 1700; compare pearl, ruby (“size of type between pearl and nonpareil”).

Pronunciation

• IPA^(key): /ˈdaɪ.ə.mənd/, /ˈdaɪ.mənd/

Noun

diamond (countable and uncountable, plural diamonds)

1. (uncountable) A glimmering glass-like mineral that is an allotrope of carbon in which each atom is surrounded by four others in the form of a tetrahedron.

2. A gemstone made from this mineral.

   Synonym: (informal) sparkler
3. A diamond ring.

4. A very pale blue color.

5. (heraldry) Sable, when blazoning by precious stones.
6. Something that resembles a diamond.

   Synonym: adamant

7. (geometry) A rhombus, especially when oriented so that its longer axis is vertical.

   Synonyms: lozenge, rhomb
8. (geometry) The polyiamond made up of two triangles.

   Synonym: 2-iamond

9. (baseball) The entire field of play used in the game.

   Synonyms: ball field, baseball field

10. (baseball) The infield of a baseball field.

    Synonyms: baseball diamond, infield

    Antonym: outfield

11. (card games) A card of the diamonds suit.

12. (Western Pennsylvania) A town square.
14. (printing, dated) The size of type between brilliant and pearl, standardized as 4+¹⁄₂-point.

Derived terms

Related terms

• demantoid
• diamantine

Translations

See also

• argyle
• carbonado
• diamante
• paragon
• shlenter
• rhinestone
• brifka

Adjective

diamond (not comparable)

1. Made of, or containing diamond, a diamond or diamonds.

   Synonym: diamantine

2. Of, relating to, or being a sixtieth anniversary.

3. Of, relating to, or being a seventy-fifth anniversary.

4. (slang) First-rate; excellent.

   (The addition of quotations indicative of this usage is being sought:)

Translations

Verb

diamond (third-person singular simple present diamonds, present participle diamonding, simple past and past participle diamonded)

1. To adorn with or as if with diamonds.

Translations

Further reading

• David Barthelmy (1997–2025) “Diamond”, in Webmineral Mineralogy Database.
• “diamond”, in Mindat.org‎^[2], Hudson Institute of Mineralogy, 2000–2025.
• “diamond n.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present
• “diamond adj.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present
• Eric Partridge (2005) “diamond”, in Tom Dalzell and Terry Victor, editors, The New Partridge Dictionary of Slang and Unconventional English, volume 1 (A–I), London, New York, N.Y.: Routledge, →ISBN, page 580.