Flow is a related term of downpour.
In lang=en terms the difference between flow and downpour
is that
flow is to discharge excessive blood from the uterus while
downpour is to pour down; rain heavily.
As nouns the difference between flow and downpour
is that
flow is a movement in people or things with a particular way in large numbers or amounts while
downpour is a heavy rain.
As verbs the difference between flow and downpour
is that
flow is to move as a fluid from one position to another while
downpour is to pour down; rain heavily.