Synonyms and related words :
accelerando, acceleration, aggravation, beefing-up, blowing up, blowup, concentration, condensation, consolidation, deepening, drive, enhancement, exacerbation, exaggeration, explosion, getaway, heating-up, heightening, impetus, information explosion, intensification, magnification, pickup, population explosion, quickening, redoubling, reinforcement, step-up, strengthening, thrust, tightening