brain
broke
brake
brain
brand
bendy
black
beer
brainbaconbatonbeginbegunbaronbasinblownbrawnbrownbruin
Something that is used to stay warm that starts with the letter B could be a blanket.
butane
Bree
Blurb
The five letter word for a brief advertisement is blurb.
Birth
brush
beter
brave
climb crumb
A 4 letter word that begins with B is bend.
bend..........
baker
Boost is a synonym for the word lift and starts with the letter B.
baobab.