1. upsurge - Noun
2. upsurge - Verb
a sudden or abrupt strong increase
Source: WordNet(T)he upsurge of violent racism in armed groups in America involves more than the United States Army, Navy, and Marine Corps. It now includes every police force in any city and county in America, the National Guard, federal agencies, and even some private ‘protective' groups. Carl Rowan
stimulated a surge of speculation Source: Internet
an upsurge of emotion Source: Internet
an upsurge in violent crime Source: Internet
Any upsurge could unsettle markets as the South Caucasus is a corridor for pipelines carrying oil and natural gas from the Caspian Sea to world markets. Source: Internet
Additionally, the increasing number of healthcare expenditure and increasing number of hospitals and clinical diagnostic laboratories in China and India upsurge demand of medical imaging. Source: Internet