'd
contraction of had:
Jump To:
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'd
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D
Dnounthe fourth letter of the English alphabet, a consonant.
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D-
D-(of a molecule) having a configuration resembling the dextrorotatory isomer of glyceraldehyde: always printed as a small capital, roman character.
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d'
d'prepositionde (used in French names as an elided form ofde ).
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d-
d-dextrorotatory; dextro- (distinguished from l-).
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d.
d.abbreviation(in prescriptions) give.
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D.
D.abbreviationday.
-
d
dsymbolphysics density or relative density
'd
1 American-
contraction of had:
I was glad they'd gone.
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contraction of did:
Where'd they go?
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contraction of should or would:
He'd like to go. I'd like to remind you of your promise.
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contraction of -ed:
She OK'd the plan.
D
2
American
[dee]
/ di /
Or
d
noun
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D's,
plural
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Ds,
plural
-
d's,
plural
-
ds
plural
-
the fourth letter of the English alphabet, a consonant.
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any spoken sound represented by the letter D or d, as in dog, ladder, ladle, or pulled.
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something having the shape of a D .
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a written or printed representation of the letter D or d.
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a device, as a printer's type, for reproducing the letter D or d.
D
3
American
D
4
American
Symbol.
-
the fourth in order or in a series.
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(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.
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(sometimes lowercase) a classification, rating, or the like, indicating poor quality.
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Music.
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the second tone in the scale of C major, or the fourth tone in the relative minor scale, A minor.
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a string, key, or pipe tuned to this tone.
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a written or printed note representing this tone.
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(in the fixed system of solmization) the second tone of the scale of C major, called re.
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the tonality having D as the tonic note.
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(sometimes lowercase) the Roman numeral for 500.
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Chemistry. deuterium. Also 2H
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Electricity.
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electric displacement.
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a battery size for 1.5 volt dry cells: diameter, 1.3 inches (3.3 centimeters); length, 2.4 inches (6 centimeters).
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-
Biochemistry. aspartic acid.
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a symbol for a shoe width size narrower than E and wider than C.
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a proportional brassiere cup size larger than C.
D-
5
American
d'
6
American
preposition
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de (used in French names as an elided form ofde ).
Charles Louis d'Albert.
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di (used in Italian names as an elided form ofdi ).
Gabriele d'Annunzio.
d'
7
American
d-
8
American
Symbol, Chemistry, Biochemistry.
d.
9
American
abbreviation
d.
10
American
abbreviation
d.
11
American
abbreviation
-
date.
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daughter.
-
day.
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deceased.
-
deep.
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degree.
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delete.
-
Physics. density.
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depth.
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deputy.
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dialect.
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dialectal.
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diameter.
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died.
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dime.
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dividend.
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dollar; dollars.
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dose.
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drachma.
D.
12
American
abbreviation
-
day.
-
December.
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Democrat.
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Democratic.
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Physics. density.
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Deus.
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Deuteronomy.
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Doctor.
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dose.
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Dutch.
D.
1
British
abbreviation
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politics Democrat(ic)
-
government Department
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dinar(s)
-
Don (a Spanish title)
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Duchess
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Duke
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(in the US and Canada) Doctor
D
2
British
symbol
-
music
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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
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a key, string, or pipe producing this note
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the major or minor key having this note as its tonic
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-
chem deuterium
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maths the first derivative of a function, as in D( x ³ + x ²) = 3 x ² + 2 x
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physics
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dispersion
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electric displacement
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aeronautics drag
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a semiskilled or unskilled manual worker, or a trainee or apprentice to a skilled worker
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( as modifier ) See also occupation groupings
D worker
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-
500 See Roman numerals
abbreviation
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Germany (international car registration)
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-
informal defence
I'm playing D in the match this afternoon
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informal defensive play
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'd
3
British
contraction
d
4
British
symbol
-
physics density or relative density
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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
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chess See algebraic notation
d
5
British
/ diː /
noun
-
the fourth letter and third consonant of the modern English alphabet
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a speech sound represented by this letter, usually a voiced alveolar stop, as in dagger
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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
D
6
British
abbreviation
d.
7
British
abbreviation
-
(in animal pedigrees) dam
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daughter
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currency penny or pennies
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diameter
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died
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dinar(s)
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dollar(s)
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drachma(s)
d
Scientific
Other Word Forms
Noun Inflected Forms
Etymology
Origin of d.9
From the Latin word dā
Origin of d.10
From the Latin word denāriī
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:
“If they had said, ‘We’re going to do this for another 20 years,’ I ‘d have been on board in a heartbeat.”
From Los Angeles Times ● May 27, 2026
But still, one by one, we ’d all burned out.
From Salon ● May 7, 2024
“The idea is that we ’d have a whole soup-to-nuts operation in the state and incorporate lessons learned from these different projects,” Hurteau says.
From Scientific American ● Aug. 5, 2021
If women were fully represented in politics, our national priorities would expand and solutions would be smarter and more diverse, and we ’d have a stronger economy and nation.
From MSNBC ● Sep. 9, 2014
The gravitational tug is so strong that you ’d be torn apart in a fraction of a second.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
Average grades in preparatory math, precalculus and calculus across UC continue their five-year decline, while D and F grades, no-pass marks and withdrawals in those courses have gone up.
From Los Angeles Times ● Sep. 17, 2026
While an increasing number of London boroughs have seen council tax on a Band D property rise above the £2,000 mark, in Wandsworth, council tax on an average Band D property is currently £1,020.35.
From BBC ● Sep. 16, 2026
Because the study was observational and conducted at a single center, it cannot show that vitamin D deficiency directly caused patients to experience more pain or use more opioids.
From Science Daily ● Sep. 14, 2026
NextEra Energy NEE -0.16%decrease; down pointing triangle and Dominion Energy D -1.06%decrease; down pointing triangle have proposed an expanded state benefits package to regulators as they look to secure approval for their $67 billion merger.
From The Wall Street Journal ● Sep. 14, 2026
Uncle D winked at me as if to say, ‘Girl, you were surely missed,’ and my heart clanged worse than when I got my first kiss from Ellis Carter.
From "Gone Crazy in Alabama" by Rita Williams-Garcia
In their most recent assessment, for example, transit scored a D- and hazardous waste a D+.
From National Geographic ● Jul. 17, 2023
Louisiana’s drinking water infrastructure limps in with a D-.
From Washington Post ● Jun. 16, 2021
Ms. E.K. announced that she would be holding before-school tutoring sessions, which Sarah, who finished the fall semester with a D-, never would have attended during remote learning.
From New York Times ● May 13, 2021
Nevertheless, D- and F-rated schools clearly have much more work to do.
From Washington Times ● Nov. 14, 2018
Yesterday Captain D- gave me a very nice caross of blessbok skins, which he got from some travelling trader.
From Letters from the Cape by Lady Lucie Duff Gordon
The maître d’ escorted us to a banquette near a window facing northeast.
From The Wall Street Journal ● Sep. 9, 2026
In the A.I. age, Maggie Hennessy asserts, sparring with a grouchy maître d’ over the phone is part of what makes dining out great.
From Slate ● Jul. 24, 2026
Flanked by tuxedoed servers and the maître d’, she announced the founder’s death, mostly silencing the crowded dining room.
From Los Angeles Times ● Aug. 17, 2025
In the French Quarter, the yearly parade by the Krewe de Jeanne d’ Arc marking the birthday of the French hero marches on a route that carries them past a golden statue of their namesake.
From Seattle Times ● Jan. 5, 2024
The maitre d’ was waiting for Captain Weber, a naval captain who commanded a cruiser attached to the fleet, to bring his lady in for dinner, but his reservation was not until 9 o’clock.
From "The Great Santini" by Pat Conroy
Ke5, Muzychuk can’t hold back both the d- and g-pawns indefinitely and resigned.
From Washington Times ● Dec. 27, 2022
Both the d- and f-block elements react with nonmetals to form binary compounds; heating is often required.
From Textbooks ● Feb. 14, 2019
They're called d- and l-isomers—d for dextro, l for levo; right and left, you see.
From A Feast of Demons by Joseph Samachson
New Designs University Park, 16-25, 25-22, 25-21, 22-25, 15-13 Jordan d. 25-23, 25-19, 25-10 Westchester d.
From Los Angeles Times ● Oct. 31, 2024
But just as bell hooks, the feminist writer, and k. d. lang, the singer-songwriter, often see their names appear with unwanted capital letters, lowercase compositions are often capitalized on their way to publication.
From New York Times ● Mar. 17, 2017
Use your answers to parts a. and d. to determine which of the three options is best.
From Textbooks ● Mar. 30, 2016
From part d. we see that receiving $1 million dollars per year indefinitely is worth $20 million dollars in today’s dollars.
From Textbooks ● Mar. 30, 2016
In the year 960 A. d. there was in the Christian Church a revival of this doctrine, and the speedy end of the world and the second coming of Jesus were proclaimed with great earnestness.
From The Eliminator; or, Skeleton Keys to Sacerdotal Secrets by Richard B. Westbrook
Solicitor Gen. D. John Sauer described the new rules as “modest measures that will help prevent and restrain potential gross abuses of the mails to perpetrate a fraud on the Nation.”
From Los Angeles Times ● Sep. 14, 2026
"Diamond frogs have been hiding their diversity beneath our feet," said Dr. Mark D. Scherz, Curator of Herpetology at the Natural History Museum Denmark and lead author of the study.
From Science Daily ● Aug. 30, 2026
Solicitor General D. John Sauer told the court the project is already 65% complete and argued that stopping construction would interfere with security improvements at the White House.
From Salon ● Aug. 15, 2026
D. R. Horton last month said that “affordability constraints and cautious consumer sentiment” continue to impact demand for new homes.
From MarketWatch ● Aug. 14, 2026
Mr. van D. had a bad cold and had already gone to bed, so we gathered around his bedside and discussed our suspicions in a whisper.
From "The Diary of a Young Girl" by Anne Frank
KKR’s fee-related earnings jumped 37% from a year ago, and the firm raise d more than $34 billion.
From The Wall Street Journal ● Jul. 30, 2026
The presence of Beta Pictoris d could also help astronomers understand the unusual appearance of the system's debris disk.
From Science Daily ● Jul. 23, 2026
The improvement was considered large by conventional statistical standards, with a Cohen's d of 1.13 on the Hamilton Depression Rating Scale, and more participants achieved remission.
From Science Daily ● Jun. 30, 2026
Fountain Valley, 25-20, 25-14, 25-16 St. Margaret’s d.
From Los Angeles Times ● May 5, 2026
But the word itself was spelled with one d not two, so Julian, who was patient beyond his years, said nothing and waited.
From "The View From Saturday" by E.L. Konigsburg
The Direct Action Everywhere activists were recently on a public road near Double D’s main farm, flying a drone over the property.
From Los Angeles Times ● May 12, 2026
What drives customers to storage, Dietz says are the four D’s: downsizing, decluttering, divorce and death.
From The Wall Street Journal ● Apr. 15, 2026
The study, published in the December issue of The American Journal of Clinical Nutrition, adds clarity to long-standing debates about vitamin D's links to colorectal cancer and other diseases.
From Science Daily ● Dec. 30, 2025
I am a deep believer in this idea that national security is built off the three D’s: defense, diplomacy, and development.
From Slate ● Feb. 5, 2025
She was in the fiction section, removing a book from the D's.
From "The View From Saturday" by E.L. Konigsburg
Only eight banks got Bs, while the majority got Cs; 36 got Ds.
From MarketWatch ● Feb. 27, 2026
Law enforcement sources said this could have been a reference to the "three Ds of insurance" - tactics used by companies to reject payment claims by patients.
From BBC ● Feb. 21, 2025
The same four Ds applied: death, divorce, dislocation, and disaster/downsizing.
From Slate ● Aug. 5, 2024
"She says you haven't shown enough yet for why we need to seal the list—eg can you maybe redact—or why you need me to make Ds 'acknowledge' it," he wrote.
From Salon ● Jun. 27, 2023
She was no longer in college, having dropped out during her third semester because of morning sickness, two Ds, and one F. Lily, she thought, would be simpler than Savannah.
From "Where Things Come Back" by John Corey Whaley
The researchers intend to continue examining Webb's observations to refine their estimates of Beta Pictoris d's temperature, atmospheric composition, and orbit.
From Science Daily ● Jul. 23, 2026
A small illustration of the eponymous rat hangs in the restaurant, signed by director Brad Bird, who spent days sketching the dining room, capturing the lamps, cheese trolley and maitre d's outfit.
From BBC ● Jan. 29, 2024
Chrostowski has changed out of his jogging gear into the maitre d’s dark suit and bow-tie.
From The Guardian ● Nov. 26, 2019
Dinner maitre d’s are gently professional, warm and welcoming.
From Washington Times ● Jul. 17, 2018
Cologne made me think of voice coaches, of maitre d’s, of old men and their unwanted embraces.
From "Middlesex: A Novel" by Jeffrey Eugenides
The Cyclones closed the third quarter with a pair of 3-pointers, the second by Ryan in the closing secon ds, that put ISU on top 49-47.
From Seattle Times ● Jan. 18, 2023
Senior forward Oscar ds Silva has played well all season and was named the Pac-12 player of the week after averaging 19.8 points and 11 rebounds in three games last week.
From Washington Times ● Jan. 13, 2021
As a result, we would incorrectly conclude that ds = 0.
From Textbooks ● Mar. 30, 2016
If f is a continuous function on a smooth curve C, then ∫C f ds always exists.
From Textbooks ● Mar. 30, 2016
The simplest possible case is, therefore, that in which ds is the square root of a quadratic function of the dx.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various
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.
