shrinkage (n.)

• ablation
• atrophy
• attenuation
• attrition
• consumption
• corrosion
• curtailment
• cut
• cutting
• decrease
• decrement
• depletion
• depreciation
• derogation
• detraction
• diminution
• dip
• disparagement
• dissipation
• dissolution
• drain
• drying
• emaciation
• erosion
• evaporation
• exhaustion
• expenditure
• extraction
• impairment
• impoverishment
• leakage
• lessening
• loss
• reduction
• remission
• retraction
• retrenchment
• shortening
• shrinking
• thinning
• truncation
• using
• wastage
• waste
• wasting
• wearing
• withering