As nouns the difference between flush and pale
is that
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 while
pale is .
As a verb flush
is to cause to take flight from concealment or
flush can be to cleanse by flooding with generous quantities of a fluid.
As an adjective flush
is smooth, even, aligned; not sticking out.