Yes, bolster is a real word.
As a verb, it means to support or strengthen something. As a noun, it means a long, thick pillow that is placed under other pillows for support.
Bolster means to support or strengthen. A sentence using the word bolster could be: the cheerleaders started to cheer to help bolster the team's confidence.
Bolster
bolster
try "bolster"
Reinforce , brace , support , secure ,
It is improper to bolster your marks by plagiarizing sentences.
bolster balls
Stephen Bolster's birth name is Stephen Monroe Bolster.
A sentence using bolster can be. I realized I needed to BOLSTER it with some substance aside from limp pasta.
Warren Bolster died in 2006.
Warren Bolster was born in 1947.
Stephanie Bolster was born in 1969.