Boost
Boost (bost) , transitive verb
[Compare Boast, v. i.]
To lift or push from behind (one who is endeavoring to climb); to push up; hence, to assist in overcoming obstacles, or in making advancement. [Colloquial United States]
Boost (bost) , noun
A push from behind, as to one who is endeavoring to climb; help. [Colloquial United States]