diamond

/ˈdaɪ.ə.mənd/

diamond noun: 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.

Image: CC BY 1.0, via Wikimedia Commons

Noun

diamond (countable and uncountable, plural diamonds)

(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.
- The saw is coated with diamond.
- synthetic diamond
A gemstone made from this mineral.
- The dozen loose diamonds sparkled in the light.
- 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, Lee A. Groat, “Gemstones”, in American Scientist, volume 100, number 2, archived from the original on 14 Jun 2012, page 128
Synonyms:

sparkler
A diamond ring.
- What a beautiful engagement diamond.
A very pale blue color.
Sable, when blazoning by precious stones.
- 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...1726, John Guillim, The Banner Display'd; Or, an Abridgment of Guillim, page 504
Something that resembles a diamond.

Synonyms:

adamant
A 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...
Synonyms:

lozenge, rhomb
A polyiamond consisting of two triangles.

Synonyms:

2-iamond
The entire field of play used in the game.

Synonyms:

ball field, baseball field
The infield of a baseball field.
- The teams met on the diamond.
Synonyms:

baseball diamond, infield

Antonyms:

outfield
A card of the diamonds suit.
- I have only one diamond in my hand.
(Pennsylvania, Western) A town square.
(dated) The size of type between brilliant and pearl, standardized as 4+¹⁄₂-point.

Adjective

diamond (not comparable)

Made of, or containing diamond, a diamond or diamonds.
- He gave her diamond earrings.
- 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
Of, relating to, or being a sixtieth anniversary.
- Today is their diamond wedding anniversary.
Of, relating to, or being a seventy-fifth anniversary.
- Today is their diamond wedding anniversary.
(slang) First-rate; excellent.
- He's a diamond geezer.

Verb

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

To adorn with or as if with diamonds.

Proper noun capitalized: Diamond

Diamond

A female given name from English of modern usage, from the name of the gem.
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
A historical settlement in Denali Borough, Alaska.
An unincorporated community in Gilmer County, Georgia.
A village in Grundy County and Will County, Illinois.
An unincorporated community in Raccoon Township, Parke County, Indiana.
A township in Cherokee County, Iowa.
An unincorporated community in Plaquemines Parish, Louisiana.
A minor city in Newton County, Missouri.
An unincorporated community in Palmyra Township, Portage County, Ohio.
An unincorporated community in Harney County, Oregon.
An unincorporated community in Kanawha County, West Virginia.
An unincorporated community in Logan County, West Virginia.
A settlement on Saint Croix, United States Virgin Islands.

diamond meaning in Hindi, Tamil, Marathi and Urdu

diamond in Hindi

uncountable: mineral: हीरा hīrā, अलमास almās, वज्र vajra, डायमंड ḍāymaṇḍ
gemstone: हीरा hīrā, अलमास almās, वज्र vajra, डायमंड ḍāymaṇḍ
card games: card of the diamonds suit: ईंट ī̃ṭ

diamond in Tamil

uncountable: mineral: வைரம் vairam

diamond in Marathi

uncountable: mineral: हिरा hirā
gemstone: हिरा hirā

diamond in Urdu

uncountable: mineral: ہِیرا hīrā, اَلْماس almās
gemstone: ہِیرا hīrā, اَلْماس almās
card games: card of the diamonds suit: اِین٘ٹ ī̃ṭ

More languagesFewer languages

diamond in Bengali: হীরা hira, রুইতন ruiton
diamond in Telugu: వజ్రం vajraṁ, వజ్రము vajramu
diamond in Malayalam: വജ്രം vajraṁ
diamond in Kannada: ವಜ್ರ vajra
diamond in Punjabi: ਹੀਰਾ hīrā
diamond in Gujarati: હીરો hīro
diamond in Odia: ଡାଏମନ୍ ḍāeman
diamond in Sanskrit: वज्रम् vajram, अविक avika, वज्र vajra
diamond in Sinhala: දියමන්ති diyamanti, වජ්ර wajra, විදුරු widuru
diamond in Assamese: হীৰা hira
diamond in Nepali: हिरा hirā
diamond in Pashto: الماس almãs
diamond in Tagalog: diyamante, brilyante
diamond in Arabic: أَلْمَاس ʔalmās, مَاس mās, الماظ almaẓ, الماس almas
diamond in Malay: intan, almas
diamond in Indonesian: intan, berlian
diamond in Persian: اَلْمَاس almās, اَلْماس almâs, خِشْت xišt
diamond in Thai: เพชร pét, ข้าวหลามตัด kâao-lǎam-dtàt
diamond in Vietnamese: kim cương, rô
diamond in Myanmar: စိန် cin, ထောင့် htaung., ချွန်း hkywan:

Examples of diamond in a sentence

The Field is Ruby, on a Bend Topaz, three Martlets Diamond.1726, John Guillim, The Banner Display'd; Or, an Abridgment of Guillim, page 504:
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:

All 40 example sentences with diamond

Synonyms of diamond

Antonyms

outfield

All synonyms and antonyms of diamond

Forms of diamond

Noun
plural	diamonds
Verb
third-person singular present	diamonds
present participle	diamonding
past participle	diamonded
past	diamonded
Proper noun
alternative form	Dimond

Plural of diamond: diamonds

Origin of diamond

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”).

* As a female given name, from diamond (gemstone). * As a German surname, Anglicized form of Diamant. * As a Irish surname, Anglicized form of Irish Ó Diamáin.

Words formed from diamond

Phrases with diamond

56 more phrasesFewer phrases

Questions about diamond

What does diamond mean?: Diamond means 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.
What is diamond in Hindi?: Diamond in Hindi is हीरा (hīrā), अलमास (almās), वज्र (vajra). See Diamond meaning in Hindi.
How do you use diamond in a sentence?: The Field is Ruby, on a Bend Topaz, three Martlets Diamond.
What part of speech is diamond?: Diamond can be a noun, an adjective, a verb or a proper noun.
How do you pronounce diamond?: Diamond is pronounced /ˈdaɪ.ə.mənd/.
What is the plural of diamond?: The plural of diamond is diamonds.

Words near diamond in the dictionary

Adapted from Wiktionary: diamond (page history and authors); Diamond (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: en-us-diamond1.ogg.

Cite this entry: “diamond.” Word.ws, https://word.ws/diamond. Based on Wiktionary, CC BY-SA 4.0.