To separate by parting
separate, part, cut up, partition, split up, sever, sunder, split, cut, fence off, disunite, disconnect, disjoin, detach, disengage, dissolve, rupture, break, dissever, dismember, unravel, carve, cleave, section, subdivide, intersect, cross, bisect, fork, branch, diverge, divaricate, rend, tear, segment, halve, quarter, dislocate, break down, demarcate, graduate, divorce, dissociate, alienate, estrange, insulate, isolate, loose, unchain, undo, unbind, count off, pull away, disentangle, chop, hew, slash, carve, splinter, split off, cut off, pull to pieces, tear apart, break apart, segregate, classify, sort, arrange, distribute, tear limb from limb*; see also break 1, cut 1, separate 2.
Antonyms unite*, combine, connect.