di

¹ American  

[dee] / di /

Or Di

preposition

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

   Conte di Savòia.

---

di ² American  

[dee] / di /

noun

Music.

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

---

Di ³ American  

[dahy] / daɪ /

noun

1. a female given name, form of Diana.

---

Di ⁴ American  

Symbol, Chemistry.

1. didymium.

---

DI ⁵ American  

1. Department of the Interior.

2. drill instructor.

---

di- ⁶ American  

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- ⁷ American  

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

---

di- ⁸ American  

1. variant of dia- before a vowel.

   diorama.

---

di. ⁹ American  

Or dia

abbreviation

1. diameter.

---

di- ¹ British  

combining form

1. variant of dia-

   diopter

---

Di ² British  

symbol

1. didymium

---

di- ³ British  

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 ⁴ British  

abbreviation

1. Defence Intelligence

2. Detective Inspector

3. Donor Insemination

---

di– Scientific  

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

---

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

Paul Whiteman, general secretary of the National Association of Head Teachers, said success also depended on "availability of support services", and Pepe Di'Iasio, general secretary of the Association of School and College Leaders, said the government needed to be aware of teachers' workload.

From BBC

And his lament over the pain of farewells likely will be felt by many of the athletes gathering Sunday for the Olympic closing ceremony at Arena di Verona, a 1st century Roman amphitheater.

From Los Angeles Times

El Camino Real holds on for 37-36 win over Eagle Rock in City DI girls semifinal.

From Los Angeles Times

For Alberto di Monte, one of the organisers of the anti-Olympic protests, the verdict is already in.

From Barron's

For years, Randall told anyone who would listen, “I am picturing us dancing on a rooftop in Val di Fiemme celebrating a men’s relay medal.”

From The Wall Street Journal