Kill en masse; kill on a large scale; kill many:
— Hitler wanted to exterminate the Jews, Gypsies, Communists, and homosexuals of Europe.

synonym: kill off.

Destroy completely, as if down to the roots.

synonyms: eradicate, extirpate, root out, uproot.

Roget 162: be destroyed &c.; perish; fall to the ground; tumble, topple; go to pieces, fall to pieces; break up; crumble to dust; go to the dogs, go to the wall, go to smash, go to shivers, go to wreck, go to pot, go to wrack and ruin; go by the board, go all to smash; be all over, be all up, be all with; totter to its fall.    destroy; do away with, make away with; nullify; annual etc. 756; sacrifice, demolish; tear up; overturn, overthrow, overwhelm; upset, subvert, put an end to; seal the doom of, do in, do for, dish [Slang], undo; break up, cut up; break down, cut down, pull down, mow down, blow down, beat down; suppress, quash, put down, do a job on; cut short, take off, blot out; dispel, dissipate, dissolve; consume.    smash, crash, quell, squash, squelch, crumple up, shatter, shiver; batter to pieces, tear to pieces, crush to pieces, cut to pieces, shake to pieces, pull to pieces, pick to pieces; laniate^†; nip; tear to rags, tear to tatters; crush to atoms, knock to atoms; ruin; strike out; throw over, knock down over; fell, sink, swamp, scuttle, wreck, shipwreck, engulf, ingulf^†, submerge; lay in ashes, lay in ruins; sweep away, erase, wipe out, expunge, raze; level with the dust, level with the ground; waste; atomize, vaporize.    deal destruction, desolate, devastate, lay waste, ravage gut; disorganize; dismantle etc. (render useless) 645; devour, swallow up, sap, mine, blast, bomb, blow to smithereens, drop the big one, confound; exterminate, extinguish, quench, annihilate; snuff out, put out, stamp out, trample out; lay in the dust, trample in the dust; prostrate; tread under foot; crush under foot, trample under foot; lay the ax to the root of; make short work of, make clean sweep of, make mincemeat of; cut up root and branch, chop into pieces, cut into ribbons; fling to the winds, scatter to the winds; throw overboard; strike at the root of, sap the foundations of, spring a mine, blow up, ravage with fire and sword; cast to the dogs; eradicate etc. 301.    ... show more

Dutch: ontwortelen, uitgeroeid, ontworteld, verdelgen