As nouns the difference between flashflood and flooding
is that flashflood is while flooding is an act of flooding; a flood or gush.
As a verb flooding is
.
flooding
English
Verb
(head)
Noun
(
en noun)
An act of flooding; a flood or gush.
* (Mark Twain)
- And by the same token it was plain that there had also been a hundred and seventy-five floodings of the earth and depositings of limestone strata!