THESAURUS
decrement
abatement, ablation, abridgment, alleviation, attenuation, attrition, consumption, contraction, corrosion, curtailment, cut, cutting, dampening, damping, decrease, decrescence, deduction, deflation, deliquescence, depletion, depreciation, depression, derogation, detraction, diminishment, diminution, dip, disparagement, dissipation, dissolution, drain, dying, dying off, erosion, evaporation, exhaustion, expenditure, extenuation, extraction, fade-out, impairment, impoverishment, languishment, leakage, lessening, letup, loss, lowering, miniaturization, minus, mitigation, reduction, relaxation, remission, retraction, retrenchment, sagging, scaling down, shortening, shrinkage, simplicity, subtraction, truncation, using, using up, wastage, waste, weakening, wear and tear, wearing, wearing away
ROGET THESAURUS
decrement
Decrease
N
nonincrease, decrease, decrease, diminution, lessening, subtraction, reduction, abatement, declension, shrinking (contraction, ), coarctation, abridgment, extenuation, subsidence, wane, ebb, decline, ebbing, descent,
decrement, reflux, depreciation, deterioration, anticlimax, mitigation, unincreased, decreased, decreasing, on the wane, a gilded halo hovering round decay, fine by degrees and beautifully less.
Decrement
N
decrement, discount, defect, loss, deduction, afterglow, eduction, waste.
Contraction
N
contraction, reduction, diminution, decrease of size, defalcation,
decrement, lessening, shrinking, compaction, tabes, collapse, emaciation, attenuation, tabefaction, consumption, marasmus, atrophy, systole, neck, hourglass, condensation, compression, compactness, compendium, squeezing, strangulation, corrugation, astringency, astringents, sclerotics, contractility, compressibility, coarctation, inferiority in size, contracting, astringent, shrunk, contracted, strangulated, tabid, wizened, stunted, waning, neap, compact, unexpanded &c (expand), contractile, compressible, smaller &c (small).