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:
LHS 1140 b circles a red dwarf star within its habitable zone.
From Science Daily ● Jul. 21, 2026
The study, published July 16 in Science, describes observations of helium escaping from LHS 1140 b, a rocky exoplanet located about 48 light-years from Earth.
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
The spectrum also indicates that GJ 504 b may contain an unusually large amount of heavy elements, often referred to by astronomers as metals.
From Science Daily ● Jun. 28, 2026
Maybe reading to Mrs. Cobb—that might b e worse.
From "Lizzie Bright and the Buckminster Boy" by Gary D. Schmidt
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Musk’s voting control also includes 1.3 billion unvested and votable restricted Class B SpaceX shares.
From The Wall Street Journal ● Aug. 11, 2026
One prominent supporter of Measure B told The Times in May that he expected the county to be sued if voters approved it.
From Los Angeles Times ● Aug. 11, 2026
Musk’s ownership and voting power includes vested options on 350 million SpaceX Class B shares and 286 million unvested and votable restricted Tesla shares received on exercising vested options.
From The Wall Street Journal ● Aug. 11, 2026
The immunisations recommended for all children under the order are for measles, mumps, rubella, diphtheria, tetanus, pertussis, polio, Haemophilus influenzae type B, pneumococcal disease, human papillomavirus, and varicella or chicken pox.
From BBC ● Aug. 10, 2026
“Are you hungry, Ida B? Do you want something to eat?”
From "Ida B" by Katherine Hannigan
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The B- rating is constrained by a number of factors, including Argentina’s international liquidity position, as well as high inflation and a record of macroeconomic instability, Fitch said.
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
Those who attended the film were apparently disappointed in the lack of action scenes, with audiences giving a lukewarm "B-" grade in exit polls, Variety said.
From BBC ● Oct. 7, 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
Using the interpretations from b. and c. explain why the Holling type I equation may not be realistic.
From Textbooks ● Mar. 30, 2016
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
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
In his left back pocket, he carries a Susan B. Anthony silver dollar.
From "The Million Dollar Shot" by Dan Gutman
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To settle the transfer, the U.S. bank subtracts the funds from Bank A's balance and adds them to Bank B's.
From The Wall Street Journal ● Jun. 26, 2026
B’s on a report card are not allowed in his family.
From Los Angeles Times ● Apr. 29, 2026
Outfits worn by the Spice Girls, including Mel B's leopard-print catsuit, are on display as part of a "Cool Britannia" exhibition in London.
From BBC ● Apr. 16, 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
I wished I could’ve told Calista about my B’s in spelling.
From Absolutely Almost by Lisa Graff
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
The Glacier Range Riders begin the 2024 season with a home game on May 21 against the Oakland Bs, which also play in the Pioneer League.
From Seattle Times ● Apr. 23, 2024
"It's helped me progress my education a lot because in my old school, I was predicted Fs and stuff - now I'm predicted Cs and Bs."
From BBC ● Aug. 10, 2023
I wound up with As and Bs in English, science, social studies, and Spanish, and a big, fat D in math.
From "Drums, Girls, and Dangerous Pie" by Jordan Sonnenblick
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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
In addition to the silicate, the James Webb Space Telescope found that VHS 1256 b's atmosphere also has carbon dioxide, carbon monoxide, methane, potassium, sodium and water.
From Salon ● Sep. 15, 2022
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," he said.
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
Mark Morgioni The concept of tests is also bs.
From Slate ● Jan. 31, 2020
“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.