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  • b
    b
  • B
    B
    noun
    the second letter of the English alphabet, a consonant.
  • B-
    B-
    (in designations of aircraft) bomber.
  • b.
    b.
    abbreviation
    bachelor.
  • B.
    B.
    abbreviation
    bachelor.
SEE ALSO:
Slang dictionary results for B.

b

1 American  

abbreviation

  1. Physics.

    1. bar; bars.

    2. barn; barns.


B 2 American  
[bee] / bi /
Or b

noun

  • B's,
    plural
  • Bs,
    plural
  • b's,
    plural
  • bs
    plural
  1. the second letter of the English alphabet, a consonant.

  2. any spoken sound represented by the letter B or b, as in bid, bauble, or daubed.

  3. something having the shape of a B .

  4. a written or printed representation of the letter B or b.

  5. a device, as a printer's type, for reproducing the letter B or b.


B 3 American  

abbreviation

  1. Chess. bishop.

  2. Black. Also b

  3. Photography. bulb.


B 4 American  
Symbol.
  1. the second 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 good or better than average.

  3. (sometimes lowercase) (in some school systems) a symbol designating the second semester of a school year.

  4. 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.

  5. Music.

    1. the seventh tone in the scale of C major or the second 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 seventh tone of the scale of C major, called ti.

    5. the tonality having B as the tonic note.

  6. (sometimes lowercase) the medieval Roman numeral for 300.

  7. Chemistry. boron.

  8. a proportional shoe width size, narrower than C and wider than A.

  9. a proportional brassiere cup size, smaller than C and larger than A.

  10. Physics. magnetic induction.

  11. Electricity. susceptance.

  12. a designation for a motion picture made on a low budget and meant as the secondary part of a double feature.

  13. a quality rating for a corporate or municipal bond, lower than BB and higher than CCC.


B- 5 American  
U.S. Military.
  1. (in designations of aircraft) bomber.

    B-29.


b. 6 American  

abbreviation

  1. bachelor.

  2. bale.

  3. Baseball. base; baseman.

  4. bass.

  5. basso.

  6. bay.

  7. billion.

  8. blend of; blended.

  9. book.

  10. born.

  11. breadth.

  12. brother.

  13. brotherhood.


B. 7 American  

abbreviation

  1. bachelor.

  2. bacillus.

  3. Baseball. base; baseman.

  4. bass.

  5. basso.

  6. bay.

  7. Bible.

  8. bolivar.

  9. boliviano.

  10. book.

  11. born.

  12. breadth.

  13. British.

  14. brother.

  15. brotherhood.


B 1 British  

symbol

  1. music

    1. 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

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

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

  2. the supporting or less important of two things

    the B side of a record

  3. a human blood type of the ABO group, containing the B antigen

  4. (in Britain) a secondary road

  5. the number 11 in hexadecimal notation

  6. chem boron

  7. magnetic flux density

  8. chess bishop

  9. (on Brit pencils, signifying degree of softness of lead) black Compare H

    B

    2B

    3B

  10. Also: bphysics bel

  11. physics baryon number

  12. balboa

  13. belga

  14. bolivar

  15. photog B-setting

    1. a person whose job is in middle management, or who holds an intermediate administrative or professional position

    2. ( as modifier ) See also occupation groupings

      a B worker

"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. Belgium (international car registration)

"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
b 2 British  
/ biː /

noun

  1. the second letter and first consonant of the modern English alphabet

  2. a speech sound represented by this letter, usually a voiced bilabial stop, as in bell

  3. Also: beta.  the second in a series, esp the second highest grade in an examination

"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

B. 3 British  

abbreviation

  1. (on maps, etc) bay

  2. British

"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

b. 4 British  

abbreviation

  1. born

  2. cricket bowled

"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

B- 5 British  

abbreviation

  1. bomber

    B-52

"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

b 6 British  

symbol

  1. 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

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:

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

Although current instruments cannot yet directly study those cloud layers in the same detail, the detection of salt clouds around GJ 504 b suggests astronomers are moving closer to that goal.

From Science Daily Jun. 28, 2026

The newly confirmed planets, TOI-791 b and TOI-791 c, orbit an F7-type dwarf star about 1,110 light years from Earth in the southern constellation Volans.

From Science Daily Jun. 27, 2026

TOI-791 b has a density of just 0.038 grams per cubic centimeter, while TOI-791 c measures 0.047 grams per cubic centimeter.

From Science Daily Jun. 27, 2026

You can also take Bacon’s cipher and express it using 0 for a and 1 for b.

From "The Woman All Spies Fear" by Amy Butler Greenfield

Emily, who attended English Martyrs School and Sixth Form College, said she felt "sick" waking up on Thursday morning, but was happy with with her A*, A and B.

From BBC Aug. 13, 2026

They live in what is known as Area B, part of the West Bank under Palestinian administrative control and Israeli security control.

From BBC Aug. 12, 2026

Six immunizations — for hepatitis A and B, rotavirus, meningococcal disease, flu and COVID-19 — are knocked down from “recommended” to “shared clinical decision-making.”

From Los Angeles Times Aug. 12, 2026

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

That, I knew, was a whole lot of days of being Ida, and not being Ida B. So many days of being Ida that I might forget what being Ida B was like.

From "Ida B" by Katherine Hannigan

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

S&P Global assigned Strategy a B- issuer credit rating with stable outlook in October, five notches below the lowest rung of investment grade.

From Barron's Feb. 2, 2026

He hopes the division can improve from Peters’ grade of a B- to a higher level.

From Los Angeles Times Nov. 14, 2025

S&Plowered its rating on the company to B- from B. It said the company’s performance “has weakened due to softness in real estate markets and higher operating costs.”

From The Wall Street Journal Oct. 10, 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

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

Briefly interpret what the result of b. means.

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

I hadn’t learned yet that I was a Type A person masquerading as Type B. The disguise began to fray almost immediately.

From Salon 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

Police say that the prime suspect in the case is 21-year-old Abdul B. and put out an appeal for information on his whereabouts as well as photo.

From Barron's Jul. 26, 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 stay tuned through the weekend, but no matter how many times I check my email, there isn’t anything from Ron B. Tully.

From "The Wrong Way Home" by Kate O’Shaughnessy

Since her breakout semi-final performance at the Miami Open last year, Eala has re-ignited interest in tennis in the Philippines, a country obsessed with the three B's - basketball, boxing and beauty queens.

From BBC Jul. 25, 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

Does this mean Fund A’s management is more skilled than Fund B’s management?

From MarketWatch Mar. 12, 2026

I put it in Ida B’s Bag of Assorted Things for Not Yet Determined Plans, but there was nothing in there except Mama’s hair.

From "Ida B" by Katherine Hannigan

Aiming for a place studying criminology with psychology at the University of the West of England in Bristol, Caitlin Giffard, also from Swansea, needs three Bs.

From BBC Aug. 12, 2026

Ah’Mari, now a 17-year-old junior, said he earned As, Bs and one C throughout high school.

From The Wall Street Journal May 10, 2026

Only eight banks got Bs, while the majority got Cs; 36 got Ds.

From MarketWatch Feb. 27, 2026

“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

Her grades are all the way down to Bs because of the time she has to spend waiting on her Senior Marthas.

From "Speak" by Laurie Halse Anderson

"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

Although most planets have relatively even atmospheres, WASP-107 b's is a few hundred meters taller on one side than on the other.

From Salon Sep. 30, 2024

The planet’s initial discovery and its photographic follow-up were only possible because of the decades-spanning Gaia-Hipparcos data, which allowed detection of HIP 99770 b’s long orbit.

From Scientific American Apr. 13, 2023

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

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

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

V Ventral fin: p pelvis, ax fin-axis, ss single row of fin-rays, bs additional rays, sch scales, cop penis.

From The Evolution of Man — Volume 2 by Ernst Heinrich Philipp August Haeckel

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