(p. pr. & vb. n.) of Deepen.

accelerando acceleration aggravation amplification annoyance augmentation beefing-up blowing up blowup concentration condensation consolidation contentiousness deliberate aggravation depression deterioration digging drilling embittering embitterment enhancement enlargement exacerbation exaggeration exasperation excavation explosion heating-up heightening increase information explosion intensification irritation lowering magnification mining pickup population explosion probing provocation redoubling reinforcement sharpening sinkage sinking souring speedup step-up strengthening tightening tunneling worsening