- Physics.
- bar; bars.
- barn; barns.
- the second letter of the English alphabet, a consonant.
- any spoken sound represented by the letter B or b, as in bid, bauble, or daubed.
- something having the shape of a B.
- a written or printed representation of the letter B or b.
- a device, as a printer's type, for reproducing the letter B or b.
- the second in order or in a series.
- (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.
- (in some school systems) a symbol designating the second semester of a school year.
- 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.
- Music.
- the seventh tone in the scale of C major or the second 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 seventh tone of the scale of C major, called ti.
- the tonality having B as the tonic note.
- the medieval Roman numeral for 300.
- boron.
- a proportional shoe width size, narrower than C and wider than A.
- a proportional brassiere cup size, smaller than C and larger than A.
- magnetic induction (def. 1).
- susceptance.
- a designation for a motion picture made on a low budget and meant as the secondary part of a double feature.
- a quality rating for a corporate or municipal bond, lower than BB and higher than CCC.
- (in designations of aircraft) bomber: B-29.
- bachelor.
- bale.
- base; baseman.
- bass.
- basso.
- bay.
- billion.
- blend of; blended.
- book.
- born.
- breadth.
- brother.
- brotherhood.
- bachelor.
- bacillus.
- base; baseman.
- bass.
- basso.
- bay.
- Bible.
- bolivar.
- boliviano.
- book.
- born.
- breadth.
- British.
- brother.
- brotherhood.
- chess See algebraic notation
- the second letter and first consonant of the modern English alphabet
- a speech sound represented by this letter, usually a voiced bilabial stop, as in bell
- the second in a series, esp the second highest grade in an examination
- music
- 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
- a key, string, or pipe producing this note
- the major or minor key having this note as its tonic
- the supporting or less important of two things
- a human blood type of the ABO group, containing the B antigen
- (in Britain) a secondary road
- the number 11 in hexadecimal notation
- boron
- magnetic flux density
- bishop
- (on Brit pencils, signifying degree of softness of lead) black
- bel
- baryon number
- balboa
- belga
- bolivar
- B-setting
- a person whose job is in middle management, or who holds an intermediate administrative or professional position
- (as modifier)
- Belgium (international car registration)
- bomber
- born
- bowled
- (on maps, etc) bay
- British