+**B** is the second letter in the [Latin alphabet](/wiki/Latin_alphabet), a foundational element of written communication. It frequently marks a second position or grouping, and denotes various concepts from a [musical note](/wiki/Musical_note) to a blood type.
+## See also
+- [Alphabet](/wiki/Alphabet)
+- [Letter](/wiki/Letter)
+- [Symbol](/wiki/Symbol)
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