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D

1 American  
[dee] / di /
Or d

noun

plural

D's, Ds, d's, ds
  1. the fourth letter of the English alphabet, a consonant.

  2. any spoken sound represented by the letter D or d, as in dog, ladder, ladle, or pulled.

  3. something having the shape of a D .

  4. a written or printed representation of the letter D or d.

  5. a device, as a printer's type, for reproducing the letter D or d.


D- 2 American  
  1. Symbol, Biochemistry. (of a molecule) having a configuration resembling the dextrorotatory isomer of glyceraldehyde: always printed as a small capital, roman character.


d- 3 American  
Symbol, Chemistry, Biochemistry.
  1. dextrorotatory; dextro- (l- ).


d. 4 American  

abbreviation

  1. British. pence.


d. 5 American  

abbreviation

  1. date.

  2. daughter.

  3. day.

  4. deceased.

  5. deep.

  6. degree.

  7. delete.

  8. Physics. density.

  9. depth.

  10. deputy.

  11. dialect.

  12. dialectal.

  13. diameter.

  14. died.

  15. dime.

  16. dividend.

  17. dollar; dollars.

  18. dose.

  19. drachma.


d' 6 American  
  1. Informal. contraction of do or did before you:

    How d'you like your eggs cooked? D'you go to the movies last night?


D 7 American  
Symbol.
  1. the fourth in order or in a series.

  2. (sometimes lowercase) (in some grading systems) a grade or mark, as in school or college, indicating the quality of a student's work as poor or barely passing.

  3. (sometimes lowercase) a classification, rating, or the like, indicating poor quality.

  4. Music.

    1. the second tone in the scale of C major, or the fourth tone in the relative minor scale, A minor.

    2. a string, key, or pipe tuned to this tone.

    3. a written or printed note representing this tone.

    4. (in the fixed system of solmization) the second tone of the scale of C major, called re.

    5. the tonality having D as the tonic note.

  5. (sometimes lowercase) the Roman numeral for 500.

  6. Chemistry. deuterium. Also 2H

  7. Electricity.

    1. electric displacement.

    2. a battery size for 1.5 volt dry cells: diameter, 1.3 inches (3.3 centimeters); length, 2.4 inches (6 centimeters).

  8. Biochemistry. aspartic acid.

  9. a symbol for a shoe width size narrower than E and wider than C.

  10. a proportional brassiere cup size larger than C.


D. 8 American  

abbreviation

  1. day.

  2. December.

  3. Democrat.

  4. Democratic.

  5. Physics. density.

  6. Deus.

  7. Deuteronomy.

  8. Doctor.

  9. dose.

  10. Dutch.


D 9 American  

abbreviation

  1. Electricity. debye; debyes.

  2. deep.

  3. depth.

  4. Optics. diopter.

  5. divorced.

  6. Dutch.


'd 10 American  
  1. contraction of had:

    I was glad they'd gone.

  2. contraction of did:

    Where'd they go?

  3. contraction of should or would:

    He'd like to go. I'd like to remind you of your promise.

  4. contraction of -ed:

    She OK'd the plan.


d' 11 American  

preposition

  1. de (used in French names as an elided form ofde ).

    Charles Louis d'Albert.

  2. di (used in Italian names as an elided form ofdi ).

    Gabriele d'Annunzio.


d. 12 American  

abbreviation

  1. (in prescriptions) give.


D. 1 British  

abbreviation

  1. politics Democrat(ic)

  2. government Department

  3. dinar(s)

  4. Don (a Spanish title)

  5. Duchess

  6. Duke

  7. (in the US and Canada) Doctor

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

d 2 British  
/ diː /

noun

  1. the fourth letter and third consonant of the modern English alphabet

  2. a speech sound represented by this letter, usually a voiced alveolar stop, as in dagger

  3. the semicircle on a billiards table having a radius of 11 1/ 2 inches and its straight edge in the middle of the baulk line

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

d 3 British  

symbol

  1. physics density or relative density

  2. maths a small increment in a given variable or function: used to indicate a derivative of one variable with respect to another, as in d y /d x

  3. chess See algebraic notation

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

'd 4 British  

contraction

  1. would or had

    I'd

    you'd

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

d. 5 British  

abbreviation

  1. (in animal pedigrees) dam

  2. daughter

  3. currency penny or pennies

  4. diameter

  5. died

  6. dinar(s)

  7. dollar(s)

  8. drachma(s)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

D 6 British  

abbreviation

  1. Deutsch: indicating the serial number in the catalogue (1951) of the musical compositions of Schubert made by Otto Deutsch (1883–1967)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

D 7 British  

symbol

  1. music

    1. a note having a frequency of 293.66 hertz ( D above middle C ) or this value multiplied or divided by any power of 2; the second note of the scale of C major

    2. a key, string, or pipe producing this note

    3. the major or minor key having this note as its tonic

  2. chem deuterium

  3. maths the first derivative of a function, as in D( x ³ + x ²) = 3 x ² + 2 x

  4. physics

    1. dispersion

    2. electric displacement

  5. aeronautics drag

    1. a semiskilled or unskilled manual worker, or a trainee or apprentice to a skilled worker

    2. ( as modifier ) See also occupation groupings

      D worker

  6. 500 See Roman numerals

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

abbreviation

  1. Germany (international car registration)

    1. informal defence

      I'm playing D in the match this afternoon

    2. informal defensive play

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
d Scientific  
  1. Abbreviation of diameter


Etymology

Origin of d.1

From the Latin word denāriī

Origin of d.1

From the Latin word

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.

With a 10% return, you’d have $1 million.

From MarketWatch

Of course, there are additional funding options such as loans, grants and scholarships — but those numbers are, roughly speaking, the kind you’d be looking at covering.

From MarketWatch

“You’d feel guilty getting up to use the restroom,” Abboud said.

From The Wall Street Journal

The last time they’d tried this hike, they’d strayed off-track and missed the hot springs, so this time, they were savoring the scene.

From Los Angeles Times

So Plemons has either made two or four films with them, though Lanthimos is quick to point out he’d cast him in another the actor had to back out of, so “You could have had a fifth film in the bag!”

From Los Angeles Times