Noun: upsurge 'úp,surj
- A sudden or abrupt strong increase
"an upsurge of emotion";
- surge, upswell, insurgence
- A sudden, often forceful flow
"Firefighters were hit by an upsurge of heat and smoke";
- rush, spate, surge, tide, upswell
Derived forms: upsurges
Type of: flow, flowing, increase, step-up
Encyclopedia: Upsurge