di
preposition
from; of: used in Italian personal names, originally to indicate place of origin.
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di
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Di
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DI
DIDepartment of the Interior.
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di-
di-a prefix occurring in loanwords from Greek, where it meant “two,” “twice,” “double” (diphthong ); on this model, freely used in the formation of compound words (dicotyledon; dipolar ) and in chemical terms (diatomic; disulfide ).
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di.
di.abbreviationdiameter.
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di–
di–A prefix that means “two,” “twice,” or “double.” It is used commonly in chemistry, as in dioxide, a compound having two oxygen atoms.
di
1 American
[dee]
/ di /
Or
Di
preposition
di
2
American
[dee]
/ di /
noun
Music.
Di
3
American
[dahy]
/ daɪ /
noun
Di
4
American
Symbol, Chemistry.
DI
5
American
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Department of the Interior.
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drill instructor.
di-
6
American
di-
7
American
di-
8
American
di.
9
American
Or
dia
abbreviation
di-
1
British
combining form
Di
2
British
symbol
di-
3
British
prefix
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twice; two; double
dicotyledon
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containing two specified atoms or groups of atoms
dimethyl ether
carbon dioxide
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a nontechnical equivalent of bi- 1
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DI
4
British
abbreviation
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Defence Intelligence
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Detective Inspector
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Donor Insemination
di–
Scientific
Etymology
Origin of di1
< Italian < Latin dē
Origin of di2
Perhaps alteration of do 2
Origin of di-6
Middle English ≪ Latin < Greek, combining form representing dís twice, double, akin to dýo two. See bi- 1, twi-
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Wednesday were League Cup winners in 1991, and in living memory for many gave us magical moments from the likes of David Hirst, Chris Waddle and Paolo di Canio.
From BBC ● Oct. 10, 2026
“For now, 5% is probably the resistance level,” said Tom di Galoma, a managing director at Mischler Financial Group.
From MarketWatch ● Aug. 27, 2026
Far from the solemn pomp of the Vatican, nestled under the arcades of the mountain town of Santarcangelo di Romagna, a tailor clad all in black leaned over his sketch.
From Barron's ● Aug. 22, 2026
Additional support for science analysis from the Istituto Nazionale di Astrofisica in Italy; and the Centre National d'Études Spatiales in France is gratefully acknowledged.
From Science Daily ● Aug. 2, 2026
Michelangelo di Bologna’s great red eyebrows contracted over his strawberry of a nose.
From "The Inquisitor's Tale" by Adam Gidwitz
In Rosario, his family firm invests in Carrasco M, a development of 24 homes by the Parana river, with Ángel Di María's property agency handling the sales.
From BBC ● Oct. 6, 2026
One person hoping to see a cheaper more transparent market for vet services is Clive Di Giorgio, who got in touch with BBC Your Voice.
From BBC ● Sep. 21, 2026
A particularly strong combination of geopolitical risks and physical supply disruptions continues to support crude oil, says Antonio Di Giacomo of XS.com in a note.
From The Wall Street Journal ● Sep. 16, 2026
“It’s a pretty strong trend and it’s global,” said Lorenzo Di Mattia, founder and chief investment officer at hedge-fund firm Sibilla Capital.
From The Wall Street Journal ● Sep. 1, 2026
Matt Di Carlo, a Navy veteran and CO’s son, had run a gas station and, for the present, was still doing so on weekends.
From "Newjack: Guarding Sing Sing" by Ted Conover
When DI Glyn Walsh returns unexpectedly early from bereavement leave, he and DS Sion Dearden work together to solve the perplexing murder of an esteemed university professor.
From BBC ● Apr. 3, 2026
El Camino Real holds on for 37-36 win over Eagle Rock in City DI girls semifinal.
From Los Angeles Times ● Feb. 22, 2026
“We think the DI progress in particular could see consensus expectations for full year margins increase towards the upper half of the guided range, driving a positive reaction to the shares today,” Citi analysts wrote.
From The Wall Street Journal ● Feb. 12, 2026
It still needs to be ratified by the DI Board next week, but that is expected.
From Seattle Times ● Apr. 17, 2024
And in consequence Ii will be cut at E into equal parts by the line CM, to which DI and di are parallel.
From Treatise on Light by Christiaan Huygens
"This relationship aligns with natural shifts in the color of ambient illumination, detectable during twilight by mammals with di- and tri-chromatic visual systems."
From Salon ● Nov. 8, 2023
In the midafternoon, when the sun is high overhead—the earth’s equator close to the ball of burning fire, just like the di- agram in Understanding Our Universe—we turn onto the dirt road to Yana Urku.
From "The Queen of Water" by Laura Resau
NOTE.—The forms di- and dif- are euphonic forms of dis-; dif- is used before a root beginning with a vowel.
From New Word-Analysis by William Swinton
What about lecithin and mono-, di-, and triglycerides?
From "The Omnivore's Dilemma" by Michael Pollan
B, trivalent; Al, trivalent, but possibly also tetra- or penta-valent; Ga, divalent and trivalent; In, mono-, di- and tri-valent; Tl, monovalent and trivalent.
From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago" by Various
Thomy ten. di. feod. in Bliston dict. feod.
From The Survey of Cornwall And an epistle concerning the excellencies of the English tongue by Richard Carew
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
