activate aggravate atomize beef up blow up bombard bundle bustle cleave complicate concentrate condense consolidate crack on cross-bombard crowd deepen dispatch double drive drive on enhance exacerbate exaggerate expedite fission forward gain ground get going haste hasten hasten on heat up heighten hie on hop up hot up hurry hurry along hurry on hurry up hustle hustle up impel intensify jazz up key up magnify make complex nucleize open the throttle pick up speed precipitate press push push on push through put on put on steam quicken race railroad through ramify redouble reinforce rev rush rush along shake up sharpen smash the atom soup up speed speed along speed up spur stampede step on it step up strengthen triple urge whet whip whip along