#1 filter v. [filtrate, strain, separate out, filter out] remove by passing through a filter; "filter out the impurities". wn
#2 filter n. device that removes something from whatever passes through it. wn
#3 filter v. [percolate, sink in, permeate] pass through; "Water permeates sand easily". wn
#4 filter n. an electrical device that alters the frequency spectrum of signals passing through it. wn
#5 filter v. [trickle, dribble] run or flow slowly, as in drops or in an unsteady stream; "water trickled onto the lawn from the broken hose"; "reports began to dribble in". wn
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