accelerate, aggravate, ball up, beef up, bifurcate, bisect, blow up, branch, branch out, by two, cleave, complicate, concentrate, condense, confound, confuse, consolidate, cut in two, deepen, deploy, dichotomize, dimidiate, disperse, divaricate, divide, double, embrangle, enhance, entangle, exacerbate, exaggerate, expand, extend, fan, fan out, fission, flare, fork, foul up, furcate, halve, heat up, heighten, hop up, hot up, implicate, in half, intensify, involve, jazz up, key up, knot, louse up, magnify, make complex, mess up, mix up, muck up, muddle, open, open up, outspread, outstretch, overgrow, overrun, perplex, ravel, redouble, reinforce, screw up, sharpen, snarl, snarl up, soup up, splay, split in two, spraddle, sprangle, sprawl, spread, spread like wildfire, spread out, stem, step up, strengthen, subdivide, tangle, transect, trifurcate, triple, unfold, whet, widen