/b/ is an online forum on 4chan.
In the International Phonetic Alphabet, /b/ (and variations thereof) refer to these consonantal stop phonemes: , the voiced bilabial plosive, a widespread sound , the voiced linguolabial plosive, a rare sound , the voiced labiodental plosive, in the Austronesian and Germanic languages , the voiced bilabial implosive, a widespread sound , the voiceless bilabial implosive, an unstable sound in languages of Africa