In lang=en terms the difference between flush and circulate
is that
flush is to excite, inflame while
circulate is to cause (a person or thing) to move in circles or through a circuit.
As verbs the difference between flush and circulate
is that
flush is to cause to take flight from concealment or
flush can be to cleanse by flooding with generous quantities of a fluid while
circulate is to move in circles or through a circuit.
As a noun flush
is a group of birds that have suddenly started up from undergrowth, trees etc or
flush can be a sudden flowing; a rush which fills or overflows, as of water for cleansing purposes or
flush can be (poker) a hand consisting of all cards with the same suit.
As an adjective flush
is smooth, even, aligned; not sticking out.