diamond

plural diamonds

1. uncountableA 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.

   synthetic diamond

   1 more example

   The saw is coated with diamond.

2. countableuncountableA gemstone made from this mineral.

   The dozen loose diamonds sparkled in the light.

   2 more examples

   Although there are dozens of different types of gems, among the best known and most important are diamond, ruby and sapphire, emerald and other gem forms of the mineral beryl, chrysoberyl, tanzanite, tsavorite, topaz and jade.

   2012 March 28, Lee A. Groat, “Gemstones”, in American Scientist, volume 100, number 2, archived from the original on 14 Jun 2012, page 128

   she is wearing small diamond studs in her earlobes. the kind u wear if u’re a modest person & u don’t want to wear anything that could catch on stuff, or be a health risk in a hospital – but u’re still someone who cares.

   2017, Nick Lake, Satellite, London: Hodder Children’s Books, →ISBN, page 259

   Synonyms: sparkler

3. countableuncountableA diamond ring.

   What a beautiful engagement diamond.

4. countableuncountableA very pale blue color.
5. countableuncountablegovernmentSable, when blazoning by precious stones.

   Pearl, an Eagle, Diamond, between three Crosses Patee, Ruby, for Morrys.

   1754, John Lodge, The Peerage of Ireland; Or, a Genealogical History of the ..., page 71

   2 more examples

   Elphingston. Pearl a Chevron Diamond between three Boars Heads Eraz'd Ruby, arm'd of the first. / Eymouth. Diamond a Lyon Rampant Pearl, on a Canton of the 2d, a Cross Ruby.

   1720, Francis Nichols, Rudiments of Honour, page 296

   The Field is Ruby, on a Bend Topaz, three Martlets Diamond. The Armes of the most Noble and Puissant Lord, Edward Brabazon, Earl of Meath, and Baron of Atherdee in the Kingdom of Ireland. His Lordship's Atchievements are Quarterly of sixteen Coats. 1. Brabazon, as above. 2. Diamond, on a Chevron between three Pickaxes Pearl, as many Mullets Ruby, by the Name of Mosley. 3. Saphire, ten Bezants, 4, 3, 2, 1, by the Bisset.

   1726, John Guillim, The Banner Display'd; Or, an Abridgment of Guillim, page 504

6. countableuncountableSomething that resembles a diamond.

   Synonyms: adamant

7. countableuncountablegeometryA rhombus, especially when oriented so that its longer axis is vertical.

   An adder writhes out of the bush, I can see the diamonds on its back; it shrithes across the sandy soil, and bites the right foot of one of the knights.

   2003, Kevin Crossley-Holland, “The Most Bitter Day”, in King of the Middle March (Arthur; 3), London: Orion Children's Books, →ISBN; 1st American edition, New York, N.Y.: Arthur A. Levine Books, Scholastic Inc., October 2004, →ISBN, page 349

   Synonyms: lozenge, rhomb

8. countableuncountablegeometryA polyiamond consisting of two triangles.

   Synonyms: 2-iamond

9. countableuncountableball gamesThe entire field of play used in the game.

   Synonyms: ball field, baseball field

10. countableuncountableball gamesThe infield of a baseball field.

    The teams met on the diamond.

    Synonyms: baseball diamond, infield · Antonyms: outfield

11. countableuncountablecard gamesA card of the diamonds suit.

    I have only one diamond in my hand.

12. PennsylvaniaWesterncountableuncountableA town square.
13. countabledateduncountablemediaThe size of type between brilliant and pearl, standardized as 4+¹⁄₂-point.

1. not comparableMade of, or containing diamond, a diamond or diamonds.

   He gave her diamond earrings.

   1 more example

   But in the diamond jubilee state coach – this one comes with both suspension and air conditioning – the queen’s hands were folded calmly in her lap.

   2023 May 6, Rachel Cooke, “It was ludicrous but also magnificent: the coronation stirred every emotion”, in The Guardian, archived from the original on 15 Jul 2023

   Synonyms: diamantine

2. not comparableOf, relating to, or being a sixtieth anniversary.

   Today is their diamond wedding anniversary.

3. not comparableOf, relating to, or being a seventy-fifth anniversary.

   Today is their diamond wedding anniversary.

4. not comparableslangFirst-rate; excellent.

   He's a diamond geezer.

present singular third person diamonds · participle present diamonding · participle past diamonded · past diamonded

1. To adorn with or as if with diamonds.

alternative Dimond

1. A female given name from English of modern usage, from the name of the gem.
2. A surname from German or Irish.

   Some experts, such as geographer Jared Diamond in his 2005 book, “Collapse,” used Easter Island as a cautionary tale of how the exploitation of limited resources can result in catastrophic population decline, ecological devastation and the destruction of a society through infighting.

   2024 September 14, Katie Hunt, “New evidence upends contentious Easter Island theory, scientists say”, in CNN

3. A number of places in the United States:
   1. A historical settlement in Denali Borough, Alaska.
   2. An unincorporated community in Gilmer County, Georgia.
   3. A village in Grundy County and Will County, Illinois.
   4. An unincorporated community in Raccoon Township, Parke County, Indiana.
   5. A township in Cherokee County, Iowa.
   6. An unincorporated community in Plaquemines Parish, Louisiana.
   7. A minor city in Newton County, Missouri.
   8. An unincorporated community in Palmyra Township, Portage County, Ohio.
   9. An unincorporated community in Harney County, Oregon.
   10. An unincorporated community in Kanawha County, West Virginia.
   11. An unincorporated community in Logan County, West Virginia.
   12. A settlement on Saint Croix, United States Virgin Islands.