Dictionary
1b
noun, often capitalized often attributive \ˈbē\
: the second letter of the English alphabet
: a musical note or key referred to by the letter B : the seventh tone of a C-major scale
: a grade that is given to a student for doing good work
plural b's or bs \ˈbēz\
Full Definition of B
1
a : the second letter of the English alphabet b : a graphic representation of this letter c : a speech counterpart of orthographic b
2
: the seventh tone of a C-major scale
3
: a graphic device for reproducing the letter b
4
: one designated b especially as the second in order or class
5
a : a grade rating a student's work as good but short of excellent b : one graded or rated with a B
6
: something shaped like the letter B
7
capitalized : the one of the four ABO blood groups characterized by the presence of antigens designated by the letter B and by the presence of antibodies against the antigens present in the A blood group
See b defined for English-language learners
See b defined for kids
ADVERTISEMENT
First Known Use of B
before 12th century
Rhymes with B
be, bee, c, cay, cee, Cree, d, dee, Dee, dree, e, fee, flea, flee, free, g, gee, ghee, glee, gree, he, key, Key, knee, lea, lee, me, mi, p, pea, pee, plea, pree, quay, re, Rhee, scree, sea, see, she, si, ski, spree, sri, t, tea, tee, the, thee, three, ti, tree, twee, Twi, v, vee, we, wee, whee, ye, z, zee
2b
abbreviation
Definition of B
1
bachelor
2
bacillus
3
back
4
bag
5
bale
6
bass
7
basso
8
bat
9
Baumé
10
before
11
Bible
12
billion
13
bishop
14
black
15
blue
16
bolivar
17
book
18
born
19
bottom
20
brick
21
brightness
22
British
23
bulb
24
butut
B
symbol
Definition of B
boron
B Defined for Kids
b
noun , often cap \ˈbē\
plural b's or bs \ˈbēz\
Definition of B for Kids
1
: the second letter of the English alphabet
2
: a grade that shows a student's work is good
3
: a musical note referred to by the letter B
Medical Dictionary
b
abbreviation
Medical Definition of B
1
bacillus
2
barometric
3
bath
4
Baumé scale
5
behavior
6
bel
7
bicuspid
8
born
9
brother
Learn More About B
ADVERTISEMENT
Seen & Heard
What made you want to look up b? Please tell us where you read or heard it (including the quote, if possible).