What is the meaning of Boost?

A push from behind, as to one who is endeavoring to climb.

Something that helps, or adds power or effectiveness; assistance.

A coordinate transformation that changes velocity.

A positive intake manifold pressure in cars with turbochargers or superchargers.

To lift or push from behind (one who is endeavoring to climb); to push up.

To help or encourage (something) to increase or improve; to assist in overcoming obstacles.

To steal.

To jump-start a vehicle by using cables to connect the battery in a running vehicle to the battery in a vehicle that won't start.

To give a booster shot to.

To amplify; to signal boost.

superlative degree of boos

a boost (impulse, stimulus, push)

Source: wiktionary.org