b
1 Americanabbreviation
noun
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B's,
plural
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Bs,
plural
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b's,
plural
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bs
plural
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the second letter of the English alphabet, a consonant.
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any spoken sound represented by the letter B or b, as in bid, bauble, or daubed.
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something having the shape of a B .
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a written or printed representation of the letter B or b.
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a device, as a printer's type, for reproducing the letter B or b.
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the second 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 good or better than average.
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(sometimes lowercase) (in some school systems) a symbol designating the second semester of a school year.
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Physiology. a major blood group usually enabling a person whose blood is of this type to donate blood to persons of type B or AB and to receive blood from persons of type O or B.
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Music.
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the seventh tone in the scale of C major or the second 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 seventh tone of the scale of C major, called ti.
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the tonality having B as the tonic note.
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(sometimes lowercase) the medieval Roman numeral for 300.
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Chemistry. boron.
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a proportional shoe width size, narrower than C and wider than A.
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a proportional brassiere cup size, smaller than C and larger than A.
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Physics. magnetic induction.
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Electricity. susceptance.
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a designation for a motion picture made on a low budget and meant as the secondary part of a double feature.
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a quality rating for a corporate or municipal bond, lower than BB and higher than CCC.
abbreviation
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bachelor.
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bale.
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Baseball. base; baseman.
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bass.
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basso.
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bay.
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billion.
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blend of; blended.
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book.
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born.
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breadth.
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brother.
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brotherhood.
abbreviation
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bachelor.
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bacillus.
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Baseball. base; baseman.
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bass.
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basso.
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bay.
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Bible.
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bolivar.
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boliviano.
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book.
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born.
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breadth.
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British.
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brother.
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brotherhood.
symbol
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music
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a note having a frequency of 493.88 hertz ( B above middle C ) or this value multiplied or divided by any power of 2; the seventh 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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the supporting or less important of two things
the B side of a record
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a human blood type of the ABO group, containing the B antigen
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(in Britain) a secondary road
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the number 11 in hexadecimal notation
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chem boron
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magnetic flux density
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chess bishop
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(on Brit pencils, signifying degree of softness of lead) black Compare H
B
2B
3B
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Also: b. physics bel
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physics baryon number
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balboa
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belga
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bolivar
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photog B-setting
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a person whose job is in middle management, or who holds an intermediate administrative or professional position
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( as modifier ) See also occupation groupings
a B worker
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abbreviation
noun
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the second letter and first consonant of the modern English alphabet
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a speech sound represented by this letter, usually a voiced bilabial stop, as in bell
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Also: beta. the second in a series, esp the second highest grade in an examination
abbreviation
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(on maps, etc) bay
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British
abbreviation
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born
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cricket bowled
abbreviation
symbol
Other Word Forms
Noun Inflected Forms
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:
Beta Pictoris b was among the first exoplanets ever photographed directly.
From Science Daily ● Jul. 23, 2026
LHS 1140 b circles a red dwarf star within its habitable zone.
From Science Daily ● Jul. 21, 2026
Cherubim and his colleagues developed a theoretical model predicting that the upper atmosphere of LHS 1140 b would contain large amounts of helium slowly escaping into space.
From Science Daily ● Jul. 21, 2026
The planet, called LHS 1140 b, is 48 light-years from Earth orbiting a red star much smaller and cooler than our Sun.
From BBC ● Jul. 17, 2026
For a square of size one, this means that we cannot choose counting numbers a and b such that the diagonal of the square can be expressed as a/b.
From "Zero: The Biography of a Dangerous Idea" by Charles Seife
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Shasta County Superior Court Judge Benjamin L. Hanna on Friday issued a preliminary injunction that temporarily blocks Measure B, a citizens’ initiative approved by 56% of voters in the June primary.
From Los Angeles Times ● Aug. 11, 2026
But those for hepatitis A and B, dengue, flu, Covid and rotavirus would be advised only for “high-risk” children, or else would to be left to “shared clinical decision-making” between doctors and parents.
From The Wall Street Journal ● Aug. 11, 2026
Included in the final category are vaccines for Covid-19, the flu, hepatitis B and more.
From The Wall Street Journal ● Aug. 10, 2026
Despite its sedate rural surroundings, operations at the Category B jail have been far from serene, with people describing a picture of chaos following the first private-to-private transfer of a prison in England and Wales.
From BBC ● Aug. 9, 2026
But if it is safe, I will meet you in conference room B at the Liston Public Library at 3:00 p.m. on Saturday, October 7.
From "Found" by Margaret Peterson Haddix
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Giving an A for effort but B- for execution, the Hollywood Reporter's Angie Han said, external Elle is "cute enough" but doesn't make sense.
From BBC ● Jun. 30, 2026
Fitch said Tuesday it upgraded the country’s Long-Term Foreign Currency and Local Currency Issuer Default Rating to B- from CCC+, with a stable ratings outlook.
From The Wall Street Journal ● May 5, 2026
S&P Global assigned Strategy a B- issuer credit rating with stable outlook in October.
From Barron's ● Nov. 24, 2025
He hopes the division can improve from Peters’ grade of a B- to a higher level.
From Los Angeles Times ● Nov. 14, 2025
She holds my current grades by two fingers: D, C, B-, D, C-, C, A. No basketball team for me, because the A was in art, so my GPA is a whopping 1.7.
From "Speak" by Laurie Halse Anderson
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In 2018, the Moscow Zoo launched a Blakiston’s fish owl breeding program, which currently is made up of two B. b. blakistoni females, one in Moscow and another at the Sakhalin Island Zoo.
From National Geographic ● Feb. 5, 2021
“I drive Kansas interstates frequently, and I know that they are doing an excellent job, a. keeping the ditches mowed and b., keeping our roads clear and safe,” said Claeys.
From Washington Times ● Feb. 10, 2019
As in part b., this function cannot be written using a formula involving basic algebraic operations only; therefore, this function is transcendental.
From Textbooks ● Mar. 30, 2016
Find the equation of the intersection curve of the surface at b. with the cone φ = π .
From Textbooks ● Mar. 30, 2016
The inscription turned out to be a date: September 3,32 b. c. , in today’s calendar.
From "1491" by Charles C. Mann
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Medicaid was established, along with Medicare for older adults, in 1965 as part of President Lyndon B. Johnson’s “Great Society” reforms.
From Salon ● Aug. 5, 2026
The idea behind this new paid service is "getting the fastest investors and algorithms a split-second advantage," Art Hogan, an analyst with B. Riley Wealth Management, told AFP.
From Barron's ● Aug. 4, 2026
Head Start was created as part of President Lyndon B. Johnson’s War on Poverty and targets the myriad challenges that low-income households face.
From Los Angeles Times ● Aug. 3, 2026
B. Riley analyst Mike Crawford summed up the political-military scene in a note to clients on Thursday by referring to “an emerging generational recapitalization of global defense posture and budgets.”
From MarketWatch ● Jul. 23, 2026
I filled out the entry form, put Annie’s poem in the envelope, and rubbed my lucky Susan B. Anthony dollar against it.
From "The Million Dollar Shot" by Dan Gutman
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She also said that years after it happened, she became aware he had asked for Complainant B's forgiveness at a meeting in Armoy.
From BBC ● Jun. 9, 2026
Beyond Beyoncé, Eminem and The Weeknd headlined, but one of the other standouts was Cardi B’s TLC-inspired performance on the main stage.
From Los Angeles Times ● Apr. 6, 2026
“We don’t want to be portrayed as: ‘Students don’t want to get B’s.
From The Wall Street Journal ● Apr. 3, 2026
“I mean, I got some B’s in math in school, so yeah, I’m aware of the math there,” he said, acknowledging the swing nature of his vote.
From Slate ● Mar. 18, 2026
After twenty seconds I hit pause and took Mrs. B’s heart rate again.
From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas
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Summer is a season of Bs: beaches, barbecues, baseball—and blockbusters.
From The Wall Street Journal ● Jun. 6, 2026
Only eight banks got Bs, while the majority got Cs; 36 got Ds.
From MarketWatch ● Feb. 27, 2026
"And by now, they would have found them. There would be plan Bs and plan Cs, to make sure that we have reduced this exposure to the US."
From BBC ● Jun. 10, 2025
“If we think there are risks, depending on our analysis of the context, we have fallback scenarios. There are plan Bs and plan Cs,” Macron said.
From Seattle Times ● Apr. 17, 2024
My Bs looked like Ps and I couldn’t make my Os rounder than a dried up pea.
From "Worth" by A. LaFaye
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"We are confident the same technique will allow us to clarify the nature of LHS 3844 b's crust and, in the future, other rocky exoplanets," concludes Kreidberg.
From Science Daily ● May 5, 2026
Yet Barnard b's mere existence hints at the presence of other exoplanets in that solar system, some of which may be more hospitable to life.
From Salon ● Oct. 4, 2024
Johansen says AB Aurigae b’s position in one of the disk’s spiral arms could indicate either creation mechanism.
From Science Magazine ● Apr. 3, 2022
Kepler 1625 b’s moon, by contrast, would be about 10 times as massive as all the terrestrial planets and the hundreds of moons in our solar system combined.
From Scientific American ● Oct. 3, 2018
It was because she has trouble saying words sometimes, especially beginnings, like b’s and t’s and k’s.
From Absolutely Almost by Lisa Graff
This won't be the last failure of this nature so long as people are rewarded for pushing this bs.
From Salon ● Mar. 13, 2023
But he has also been dismissive, as he was as recently as Dec. 20, when he tweeted, “Bitcoin is almost as bs as fiat money.”
From Los Angeles Times ● Feb. 10, 2021
Plaskett took note of all this attention and even retweeted a message that said “@StaceyPlaskett is all of us right now listening to the bs in #CohenHearing.”
From Slate ● Feb. 27, 2019
“Hey Joe, my buddy was offered an eli game used helmet and jersey. Are these the bs ones eli asked you to make up because he didnt want to give up the real stuff?”
From Washington Post ● Jun. 28, 2017
A is the condition of in-sinking of the sternal surface and consequent enclosure of the lamelligerous surface of the appendage in a chamber with narrow orifice—the pulmonary air-holding chamber. pl, Pulmonary lamellae. bs, Blood sinus.
From Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 3 "Apollodorus" to "Aral" 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.