bubble mixture
I don't know it might be B if your looking for WORDS!?!?! butter butt taco Bone Back Balloon every thing begins with taco
Miami Beach is a place with two words that start with M and B. Manhattan Beach and Malibu Beach are others.
Bourbon.
Bosnia and Herzegovina?
There are no words that start with B and rhyme with abrasive.
but
bacteria
There are no two-letter English words that end with B.
BadSeems to be only one. The thing you must consider here is that there are no "bad" words. A word is an amoral thing. The purpose or use to which it is put can be good or bad, but the word itself can never be.
kabob, knob, kerb
take any dictionary
beak, buck, back, book