B

n. musical note

n. second letter of the English alphabet

B is the second letter in the Latin alphabet. Its name in English is spelled bee or occasionally be , plural bees.
See more at Wikipedia.org...

B. is a US singer, songwriter, musician and producer originally from Chicago.He is a singer, musician and one of the founders and main songwriters of the San Francisco electronica/trip hop band Karmacoda. As a producer and mixer, B. has primarily focused his efforts on the music of Karmacoda. He produced, recorded and mixed Karmacoda's albums Reco mended (2001), Evidence (2003) and Illuminate (2007).
See more at Wikipedia.org...

Noun
1. the blood group whose red cells carry the B antigen
(synonym) type B, group B
(hypernym) blood group, blood type
2. aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil
(synonym) Bacillus, Bacilli
(hypernym) eubacteria, eubacterium, true bacteria
(hyponym) Bacillus anthracis, anthrax
(member-holonym) genus Bacillus
3. originally thought to be a single vitamin but now separated into several B vitamins
(synonym) B-complex vitamin, B complex, vitamin B complex, vitamin B, B vitamin
(hypernym) water-soluble vitamin
(hyponym) choline
4. a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
(synonym) boron, atomic number 5
(hypernym) chemical element, element
(substance-holonym) kernite
5. a logarithmic unit of sound intensity equal to 10 decibels
(synonym) bel
(hypernym) sound unit
6. the 2nd letter of the Roman alphabet
(hypernym) letter, letter of the alphabet, alphabetic character
(member-holonym) Roman alphabet, Latin alphabet

Noun
1. (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter
(synonym) barn
(hypernym) area unit, square measure
(classification) nuclear physics, atomic physics, nucleonics

n. b, second letter of the English alphabet; musical note

C/O, care of, through someone, via another (instruction on a letter indicating that it is to be delivered to someone who is staying at an address which is not their own); at, near, with

n. b, second letter of the English alphabet