di-

¹

1. 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 ).

DI

²

1. Department of the Interior.

2. drill instructor.

di.

³

Or dia

abbreviation

1. diameter.

di-

⁴

1. variant of dia- before a vowel.

   diorama.

Di

⁵

[dahy]

noun

1. a female given name, form of Diana.

di

⁶

[dee]

noun

Music.

1. a tone in the ascending chromatic scale between do and re.

di-

⁷

1. variant of dis- before b, d, l, m, n, r, s, v, and sometimes g and j: digest; divide.

di

⁸

Or Di

[dee]

preposition

1. from; of: used in Italian personal names, originally to indicate place of origin.

   Conte di Savòia.

Di

⁹

Symbol, Chemistry.

1. didymium.

di-

¹

combining form

1. variant of dia-

   diopter

di-

²

prefix

1. twice; two; double

   dicotyledon

2. 1. containing two specified atoms or groups of atoms

      dimethyl ether

      carbon dioxide

   2. a nontechnical equivalent of bi- 1

DI

³

abbreviation

1. Defence Intelligence

2. Detective Inspector

3. Donor Insemination

Di

⁴

symbol

1. didymium

di–

1. A prefix that means “two,” “twice,” or “double.” It is used commonly in chemistry, as in dioxide, a compound having two oxygen atoms.

Word History and Origins

Origin of di-¹

Middle English ≪ Latin < Greek, combining form representing dís twice, double, akin to dýo two. See bi- ¹, twi-

Origin of di-²

Perhaps alteration of do ²

Origin of di-³

< Italian < Latin dē

Word History and Origins

Origin of di-¹

via Latin from Greek, from dis twice, double, related to duo two. Compare _bi- ¹

Example Sentences

“We continue to believe that our planned separation to create two distinct, leading media companies will create compelling value,” said Warner Discovery Board Chair Samuel Di Piazza Jr. in a statement.

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On an overcast day at Phillip Island, the Aprilia rider benefited from two long lap penalties served by a flying Marco Bezzecchi to take the chequered flag 1.418sec clear of Ducati's Fabio Di Giannantonio.

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On an overcast day at Phillip Island, the Aprilia-Trackhouse rider benefited from two long lap penalties served by a flying Marco Bezzecchi to take the chequered flag 1.418sec clear of Ducati's Fabio Di Giannantonio.

Read more on Barron's

At 17 years, six months and 18 days old, Camarda scored his first Serie A goal against Bologna in September, becoming the youngest player in Lecce's history to do so - the AC Milan forward sent south to gain experience on loan under Eusebio di Francesco.

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To meet demand, “we absolutely need greenfield development,” partner Luciano Di Fiori says in a webcast presentation.

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