upsurge

1 ENTRIES FOUND:
upsurge /ˈʌpˌsɚʤ/ noun
plural upsurges
upsurge
/ˈʌpˌsɚʤ/
noun
plural upsurges
Britannica Dictionary definition of UPSURGE
[count]
: a rapid or sudden increase or rise — usually + in or of