rapid increase;  proliferation;  surge;  explosion
 special issue (of a magazine, etc.);  issuing an extra number
 rising water (of river, lake, etc.);  swelling water;  increased water;  high water
 increase;  rise;  growth;  addition;  increment
 amplification (elec.);  magnification;  amplification;  making larger
 reinforcement;  augmentation;  strengthening;  increase;  buildup
 growing impudent;  becoming arrogant;  getting stuck-up;  becoming more severe (esp. regarding something bad);  increasing
 increasing the number of staff;  hiring more people
 increase and decrease;  fluctuation
 increased volume or quantity
 sharp increase;  sudden rise
 increase (in an amount of money)
 extension and structural alteration of building
 additional printing (esp. of books, etc.);  additional run
 extending (e.g. a book);  augmenting;  enlarging;  supplementing
 slight increase;  marginal rise
 increase the number of trains in operation;  increase bond issues
 collection of additional taxes
 nothing increases or decreases (because all things are void)
 increase in the number of flights
 expansion (in space) of a sales area;  increase in the number of beds (in a hospital, etc.)
 increment;  change;  increment
 sensitization;  hypersensitization
 increase in the number of vehicles, trains, etc.;  increase in runs (bus, etc.)
 monotonically increasing sequence
 quota increase;  allowance increase;  limit increase;  increase in one's share
 successive or progressive increases;  cumulative increase
 increased tax revenue;  tax increases
 adding or removing rolling stock to a train that is in service
 good crop;  increased yield
 16,800,000-year period over which a human lifespan increases from ten years to 84,000 years (by one year per century) and then decreases back to ten (by one year per century)
 augmented chord;  augmented triad