THESAURUS
Rive
amputate, ax, bisect, breach, break, broach, butcher, carve, check, chink, chop, cleave, crack, crevasse, cut, cut apart, cut away, cut in two, cut off, cut open, dichotomize, dispart, dissever, ditch, divaricate, divide, excise, fissure, fly open, fracture, furrow, gap, gash, groove, hack, halve, hew, incise, jigsaw, lance, lay open, ope, open, open up, pare, part, prune, rend, rent, rift, rip, rupture, saw, scissor, separate, sever, slash, slice, slit, slot, snip, split, spread, spread out, spring open, sunder, swing open, tap, tear, tear open, throw open, trench, whittle
ROGET THESAURUS
Rive
Disjunction
VB
be disjoined, come off, fall off, come to pieces, fall to pieces, peel off, get loose, disjoin, disconnect, disengage, disunite, dissociate, dispair, divorce, part, dispart, detach, separate, cut off, rescind, segregate, set apart, keep apart, insulate, isolate, throw out of gear, cut adrift, loose, unloose, undo, unbind, unchain, unlock, unpack, unravel, disentangle, set free, sunder, divide, subdivide, sever, dissever, abscind, circumcise, cut, incide, incise, saw, snip, nib, nip, cleave, rive, rend, slit, split, splinter, chip, crack, snap, break, tear, burst, rend, rend asunder, rend in twain, wrench, rupture, shatter, shiver, cranch, crunch, craunch, chop, cut up, rip up, hack, hew, slash, whittle, haggle, hackle, discind, lacerate, scamble, mangle, gash, hash, slice, cut up, carve, dissect, anatomize, dislimb, take to pieces, pull to pieces, pick to pieces, tear to pieces, tear to tatters, tear piecemeal, tear limb from limb, divellicate, skin, disintegrate, dismember, disbranch, disband, disperse, dislocate, disjoint, break up, mince, comminute, apportion, part, part company, separate, leave.