- a variation of 2H.
-
'd
'dcontraction of had:
-
D
Dnounthe fourth letter of the English alphabet, a consonant.
-
D-
D-(of a molecule) having a configuration resembling the dextrorotatory isomer of glyceraldehyde: always printed as a small capital, roman character.
-
d'
d'prepositionde (used in French names as an elided form ofde ).
-
d-
d-dextrorotatory; dextro- (distinguished from l-).
-
d.
d.abbreviation(in prescriptions) give.
-
D.
D.abbreviationday.
-
d
dsymbolphysics density or relative density
'd
1 American-
contraction of had:
I was glad they'd gone.
-
contraction of did:
Where'd they go?
-
contraction of should or would:
He'd like to go. I'd like to remind you of your promise.
-
contraction of -ed:
She OK'd the plan.
noun
-
D's,
plural
-
Ds,
plural
-
d's,
plural
-
ds
plural
-
the fourth letter of the English alphabet, a consonant.
-
any spoken sound represented by the letter D or d, as in dog, ladder, ladle, or pulled.
-
something having the shape of a D .
-
a written or printed representation of the letter D or d.
-
a device, as a printer's type, for reproducing the letter D or d.
-
the fourth in order or in a series.
-
(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.
-
(sometimes lowercase) a classification, rating, or the like, indicating poor quality.
-
Music.
-
the second tone in the scale of C major, or the fourth tone in the relative minor scale, A minor.
-
a string, key, or pipe tuned to this tone.
-
a written or printed note representing this tone.
-
(in the fixed system of solmization) the second tone of the scale of C major, called re.
-
the tonality having D as the tonic note.
-
-
(sometimes lowercase) the Roman numeral for 500.
-
Chemistry. deuterium. Also 2H
-
Electricity.
-
electric displacement.
-
a battery size for 1.5 volt dry cells: diameter, 1.3 inches (3.3 centimeters); length, 2.4 inches (6 centimeters).
-
-
Biochemistry. aspartic acid.
-
a symbol for a shoe width size narrower than E and wider than C.
-
a proportional brassiere cup size larger than C.
preposition
-
de (used in French names as an elided form ofde ).
Charles Louis d'Albert.
-
di (used in Italian names as an elided form ofdi ).
Gabriele d'Annunzio.
abbreviation
abbreviation
abbreviation
-
date.
-
daughter.
-
day.
-
deceased.
-
deep.
-
degree.
-
delete.
-
Physics. density.
-
depth.
-
deputy.
-
dialect.
-
dialectal.
-
diameter.
-
died.
-
dime.
-
dividend.
-
dollar; dollars.
-
dose.
-
drachma.
abbreviation
-
day.
-
December.
-
Democrat.
-
Democratic.
-
Physics. density.
-
Deus.
-
Deuteronomy.
-
Doctor.
-
dose.
-
Dutch.
contraction
symbol
-
physics density or relative density
-
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
-
chess See algebraic notation
abbreviation
-
politics Democrat(ic)
-
government Department
-
dinar(s)
-
Don (a Spanish title)
-
Duchess
-
Duke
-
(in the US and Canada) Doctor
symbol
-
music
-
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
-
a key, string, or pipe producing this note
-
the major or minor key having this note as its tonic
-
-
chem deuterium
-
maths the first derivative of a function, as in D( x ³ + x ²) = 3 x ² + 2 x
-
physics
-
dispersion
-
electric displacement
-
-
aeronautics drag
-
-
a semiskilled or unskilled manual worker, or a trainee or apprentice to a skilled worker
-
( as modifier ) See also occupation groupings
D worker
-
-
500 See Roman numerals
abbreviation
-
Germany (international car registration)
-
-
informal defence
I'm playing D in the match this afternoon
-
informal defensive play
-
abbreviation
-
(in animal pedigrees) dam
-
daughter
-
currency penny or pennies
-
diameter
-
died
-
dinar(s)
-
dollar(s)
-
drachma(s)
noun
-
the fourth letter and third consonant of the modern English alphabet
-
a speech sound represented by this letter, usually a voiced alveolar stop, as in dagger
-
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
abbreviation
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
“Why, this diggin’ ’d make it look like thirty cents.
From Slate ● Nov. 25, 2018
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
“And six hours later I knew I couldn’t take it anymore, but I was just damned if I ’d give in and say my name.
From "Code Name Verity" by Elizabeth Wein
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The research, published in Physical Review D under the title "When Black Holes Admit Pair-of-pants Topologies," examines the physical laws that keep black holes intact and whether certain circumstances could allow them to break apart.
From Science Daily ● Nov. 3, 2026
Solicitor General D John Sauer, in an emergency filing with the Supreme Court, said that "once California commingles the challenged ballots with lawful ones, there is no way to get the challenged ballots back."
From Barron's ● Nov. 2, 2026
Cami Kwan, director of Burbank, Calif.-based stop-motion studio Apartment D Films, which animated the e.l.f. spot, estimates that inbound inquiries have doubled over the past two years.
From The Wall Street Journal ● Nov. 2, 2026
“Heavy D had been on the show and he wrote a song for us, we recorded it but I don’t know what happened to it.”
From Los Angeles Times ● Oct. 30, 2026
Vonetta took one look at Uncle D and burst into tears.
From "Gone Crazy in Alabama" by Rita Williams-Garcia
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In their most recent assessment, for example, transit scored a D- and hazardous waste a D+.
From National Geographic ● Jul. 17, 2023
Catherine Porter, based in Paris, spent three days traveling across the D- Day landing sites in northern France to report this story.
From New York Times ● Jun. 6, 2023
Louisiana’s drinking water infrastructure limps in with a D-.
From Washington Post ● Jun. 16, 2021
Instead, Sen. Patrick Leahy, D- Vt., who serves in the largely ceremonial role of Senate president pro tempore, is set to preside.
From Seattle Times ● Jan. 25, 2021
On all sides D- and B-class leadys were rushing up, some with weapons, some with metal slats.
From The Defenders by Ed Emshwiller
But despite our lack of a reservation, the maître d’, Victoria Dearing, seated us at a two-top anyway for the supper menu, which included classic steak frites and their famed Black Label Burger.
From The Wall Street Journal ● Oct. 26, 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
The maître d’ was so rude and they called security on us,” says Bernad.
From Los Angeles Times ● Apr. 27, 2026
“They’re like a private maitre d’ now,” said Nicky Haslam, 84, the English interior designer and social fixture.
From Seattle Times ● May 16, 2024
Looking more like a restaurant maitre d’ than a cowboy, Joel opened the gate between the two paddocks.
From "The Omnivore's Dilemma" by Michael Pollan
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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
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
Use your answers to parts a. and d. to determine which of the three options is best.
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 General D. John Sauer, in an emergency filing with the Supreme Court, had said that "once California commingles the challenged ballots with lawful ones, there is no way to get the challenged ballots back."
From Barron's ● Nov. 2, 2026
Kay’s appellate attorney David Gerger withdrew in April and most recent appeal was written by a team of federal public defenders led by Jason D. Hawkins.
From Los Angeles Times ● Nov. 2, 2026
Ronald D. Moore will receive it for his role in adapting the story from Diana Gabaldon's original novels into the TV format.
From BBC ● Nov. 2, 2026
Before the D-Day operation began, Gen. Dwight D. Eisenhower drafted two statements, one to be issued if the invasion succeeded, the other if it failed.
From The Wall Street Journal ● Oct. 27, 2026
One thing is certain: it’ll be a while before Mrs. van D. makes another dental appointment!
From "The Diary of a Young Girl" by Anne Frank
![]()
Middle College, 25-12, 25-10, 25-20 #12 Fairfax d.
From Los Angeles Times ● Oct. 29, 2026
Corona Centennial, 25-22, 25-18, 25-20 Murrieta Valley d.
From Los Angeles Times ● Oct. 28, 2026
Santa Monica Pacifica Christian, 23-25, 25-9, 25-19, 25-21 Viewpoint d.
From Los Angeles Times ● Oct. 22, 2026
Newbury Park Adventist, 25-21, 25-22, 5-25, 25-22 Joshua Springs d.
From Los Angeles Times ● Oct. 22, 2026
“Oh well, he d sold off them medals and give the money to war widows and orphans. ’
From "A Long Way from Chicago" by Richard Peck
![]()
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
Gass said that the Sydney show definitely won’t be Tenacious D’s last.
From Salon ● Jan. 21, 2026
Because inflammation can accelerate telomere damage, vitamin D's anti-inflammatory properties may help explain its apparent protective effects.
From Science Daily ● Oct. 22, 2025
And what makes Mickey D’s breakfast interesting, suggested CNBC’s Carl Quintanilla, is that it could be considered a “proxy for employment. You’re more likely to visit if you have somewhere to go in the morning.”
From Slate ● Aug. 8, 2025
The truth was, without Lynn, I probably would have gotten some D’s, I didn’t understand the point of school.
From "Kira-Kira" by Cynthia Kadohata
![]()
Cooper believes that building a championship team starts with what he calls the five Ds: determination, dedication, desire, discipline and decision-making.
From Los Angeles Times ● Apr. 8, 2026
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 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
Occasionally a twinkling golden figure zigzagged the room — it was one of the restaurant’s maître d’s, wearing a fully sequined gown that Bella Hadid modeled during Ralph Lauren’s fall 2019 runway show.
From New York Times ● Oct. 23, 2021
Chrostowski has changed out of his jogging gear into the maitre d’s dark suit and bow-tie.
From The Guardian ● Nov. 26, 2019
He pronounced the words lazily, blunting the t’s to d’s so that it sounded like “siddle lister.”
From "Educated" by Tara Westover
![]()
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
Bo, Bristles surrounding the mouth. ds, Dorsal bristles. hCi, Posterior lateral cilia.
From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various
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