Knob
Slob
Tomb Arab, Barb, Club, Drab, Grub, Herb, Verb.
carb, crab, verb, bomb, lamb, daub, drab
slab comb crib crab boob blab curb
BULB, boob, bomb, barb, blab, blob
club
sub
flab
crib
Dumb
buzzzz:)
Bellybuttons would be the longest word I can think of beginning with a 'b' and ending in an 's'.
Eight letter words beginning with b, ending with e:backsidebaselinebegrudgebelittleblockadeblockagebreakage
thumb
Scarab.
cherrub
thumb
Ballerina is one 9-letter word beginning with B and ending with A.
Some seven letter words starting with B are:bathtubdisturbperturbproverbrhubarbsuccumbtaxicabwashtub
Caleb fdhrsb
carob climb
bath