Better and Bolstered up

Better adjective - (comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another.

Bolstered up and better are semantically related. In some cases you can use "Bolstered up" instead an adjective "Better".

Better and bolstered up are semantically related. Sometimes you can use "Better" instead an adjective phrase "Bolstered up".