Definitions
1.verbTo refute or argue against a position or an accusation; to express one's own view on a situation."The scandal is growing legs, we need to start pushing back."
2.nounThe act of repelling an enemy, etc.
3.nounA procedure in which an aircraft is pushed backwards away from the gate by some external force, usually a special tractor.
4.nounCriticism of or resistance to a proposal, stance, or event.
5.nounBacklash of any sort.