diamond.
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.
Meaning & usage
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.
A diamond ring.
What a beautiful engagement diamond.
A very pale blue color.
Sable, when blazoning by precious stones.
Something that resembles a diamond.
A rhombus, especially when oriented so that its longer axis is vertical.
A polyiamond consisting of two triangles.
The entire field of play used in the game.
The infield of a baseball field.
The teams met on the diamond.
A card of the diamonds suit.
I have only one diamond in my hand.
A town square.
The size of type between brilliant and pearl, standardized as 4+¹⁄₂-point.
Where this word comes from
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)? Proto-Indo-European *demh₂-der. Ancient Greek δαμνάω (damnáō)? Ancient Greek ἀδάμας (adámas)der. Latin adamāsder. Late Latin diamās Old French diamantbor. Middle English dyamaunt English 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”).
Made of, or containing diamond, a diamond or diamonds.
He gave her diamond earrings.
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.
First-rate; excellent.
He's a diamond geezer.
Where this word comes from
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)? Proto-Indo-European *demh₂-der. Ancient Greek δαμνάω (damnáō)? Ancient Greek ἀδάμας (adámas)der. Latin adamāsder. Late Latin diamās Old French diamantbor. Middle English dyamaunt English 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”).
To adorn with or as if with diamonds.
Where this word comes from
Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Hellenic *ə- Ancient Greek ἀ- (a-)? Proto-Indo-European *demh₂-der. Ancient Greek δαμνάω (damnáō)? Ancient Greek ἀδάμας (adámas)der. Latin adamāsder. Late Latin diamās Old French diamantbor. Middle English dyamaunt English 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”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.