Blast, Blunt, Badge, Bells, Brash, Beard, Bruin, Barge,
Blurb
The five letter word for a brief advertisement is blurb.
beter
Birth
brave
brush
climb crumb
A 4 letter word that begins with B is bend.
bend..........
baker
brain broke brake brain brand bendy
Boost is a synonym for the word lift and starts with the letter B.