Blasphemously is a long word. It begins with the letter b.
A 4 letter word that begins with B is bend.
antidiabetic
adenofibroma
Ballerina is one 9-letter word beginning with B and ending with A.
Benumb is a 6 letter word. It means to make numb.
bah
blurb
blunt
Belated is a synonym for late. It begins with the letter b.
Big dipper is an outer space word. Black hole is another outer space word that begins with the letter b.
Brother