- Donor Insemination
Collins Concise English Dictionary © HarperCollins Publishers::
DI abbreviation for
di-,1 prefix.
WordReference Random House Learner's Dictionary of American English © 2026- di- comes from Greek, where it has the meaning "two, double''. This meaning is found in such words as: diode, dioxin, diptych.
dia-, prefix.
WordReference Random House Unabridged Dictionary of American English © 2026- dia- comes from Greek, where it has the meanings "through, across, from point to point;
completely.'' These meanings are found in such words as: diagnosis, dialogue, dialysis, diameter, diaphanous, diarrhea.
di1
(dē),USA pronunciation prep.
di2 (dē),USA pronunciation n. [Music.]
Di (dī),USA pronunciation n.
DI,
di-1 :
di-2 :
di-3 :
di.,
WordReference Random House Unabridged Dictionary of American English © 2026- Foreign Termsfrom;
of: used in Italian personal names, originally to indicate place of origin:Conte di Savòia.
- Latin dē
- Italian
di2 (dē),USA pronunciation n. [Music.]
- Music and Dancea tone in the ascending chromatic scale between do and re.
- perh. alteration of do2
Di (dī),USA pronunciation n.
- Chemistrya female given name, form of Diana.
DI,
- GovernmentDepartment of the Interior.
- drill instructor.
- didymium.
di-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).
- Greek, combining form representing dís twice, double, akin to dýo two. See bi-, twi-
- Middle English
Latin
di-2 :
- var. of dis- 1 before b, d, l, m, n, r, s, v, and sometimes g and j: digest;
divide.
di-3 :
- var. of dia- before a vowel:diorama.
di.,
- Mathematicsdiameter.
dia-,
dia.,
- a prefix occurring in loanwords from Greek (diabetes;
dialect) and used, in the formation of compound words, to mean "passing through'' (diathermy), "thoroughly,'' "completely'' (diagnosis), "going apart'' (dialysis), and "opposed in moment'' (diamagnetism).
- Greek, combining form representing diá (preposition) through, between, across, by, of, akin to dýo two and di- di-1
dia.,
- Mathematicsdiameter.
Collins Concise English Dictionary © HarperCollins Publishers::
di- prefix
- twice; two; double: dicotyledon
- containing two specified atoms or groups of atoms: dimethyl ether, carbon dioxide
- a nontechnical equivalent of bi-1
di- combining form
variant of dia-: diopter
Collins Concise English Dictionary © HarperCollins Publishers::
dia-, di- prefix
- through, throughout, or during: diachronic
- across: diactinic
- apart: diacritic
'DI' also found in these entries (note: many are not synonyms or translations):
Agostino di Duccio
- Angelico
- artificial insemination
- barramundi
- benzodiazepine
- Betti
- bi-
- Bronzino
- butadiene
- Cagliostro
- Calabria
- Campagna
- Castellammare di Stabia
- Cavour
- Ciano
- crescendo
- D'Annunzio
- deluge
- di-
- dia-
- dianthus
- diazepam
- dichroic
- diene
- -diene
- digest
- dilemma
- dimer
- dimity
- dinky-di
- diode
- dioecious
- diphthong
- diplo-
- diprotodon
- dipterous
- diptych
- dis-
- dismiss
- disperse
- Di Stéfano
- distich
- dithionous acid
- divagate
- diverge
- divert
- divide
- divulge
- DOC
- addition