subtract, v. 1. withdraw, take away, abstract, remove, take out, take from, Archaic, subduct.
2. deduct, discount, take off, Inf. lop off, Sl. knock off.
subtraction, n. deduction, removal, withdrawal, abstraction, Archaic, subduction, taking away; diminution, lessening, abridgment, reduction.
suburb, n. 1. outlying district or region, faubourg, purlieu, Sl. shruburb, bedroom community; environs, outskirts, Sl. burbs, Fr. banlieue; neighborhood, Fr. alentours, vicinity, vicinage, area, surrounding area. 2. edge, fringe, periphery, perimeter, border, boundary, frontier; confines, limits, bounds, pale.
subvention, n. grant, award, gift, provision, bounty. See - subsidy.
subversion, n. 1. overthrow, overturn, defeat, conquest, vanquishment; upset, disruption, upheaval, revolution, coup d'etat; supplantation, ouster, replacement, displacement; disestablishment, deposition; espionage, treason, sabotage, incendiarism, sedition.
2. demolition, pulverization, destruction, breakup; devastation, desolation, ravagement, despoilment, ruin, ruination, waste; obliteration, annihilation, extinguishment, extinction, expunction, abolition, abolishment; extirpation, discreation, eradication, extermination; blotting out, striking out, stamping out, crushing out, wiping out.
3. corruption, depravation, warping, perversion, demoralization, vitiation; debasement, degradation, demeaning; contamination, tainting, pollution, defilement; injury, marring, damage, spoilage.
4. undermining, sapping, weakening; discrediting, invalidation; nullification, neutralization, counteraction.
subversive, adj. 1. insurrectionary, seditionary, seditious, insurgent, incendiary; treasonous, traitorous; revolutionary, underground.
2. overpowering, overwhelming, upsetting; disruptive, riotous, calamitous, disastrous, cataclysmic, catastrophic; destructive, destroying, ravaging, wasting, ruinous, ruining; demolishing, demolitionary, devastating, desolating, shattering.
3. undermining, weakening, demoralizing, invalidating, nullifying, neutralizing.
-n. 4. saboteur, insurrectionary; insurgent, fifth column, fifth columnist; traitor, Trojan Horse; sympathizer, collaborator, collaborationist; seditionary, incendiary; radical, revolutionary, rebel.
subvert, v. 1. overthrow, overturn, overpower, topple, defeat, conquer, vanquish, oust; upset, overwhelm, turn upside down, invert, disrupt, upheave; supplant, replace, displace; disestablish; depose, dethrone, unseat, remove from office, uncrown, discrown, unfrock.
2. demolish, wipe out, pulverize, wreck, Sl. total, destroy; obliterate, annihilate, extinguish, expunge, abolish; extirpate, eradicate, exterminate; blot out, strike out, stamp out, crush out, devastate, desolate, lay waste; ravage, despoil, work havoc upon, ruin, Dial. ruinate; raze, fell, level; shatter, crash, smash, batter, break; pull down, tear down, take down, bring down, break down, throw down, cast down, beat down, knock down, undo.
3. corrupt, deprave, warp, pervert, demoralize, vitiate; debase, reduce, lower, degrade, demean; contaminate, taint, poison, pollute, defile; injure, mar, damage, spoil, spot, mark, stain; scar, deface, blemish.
4. undermine, sap, weaken; discredit, invalidate; nullify, neutralize, counteract.
subway, n. underground railroad, underground, Inf tube, metro, BMT, IRT, MTA; el.