filter

1. (verb) remove by passing through a filter; "filter out the impurities"
Synonyms: filter out, filtrate, separate out, strain
Related Words: separate

2. (noun) removes something from whatever passes through it
Related Words: air cleaner, air filter, bacteria bed, coffee filter, device, diatomaceous earth, diatomite, diffusing screen, drain basket, filter bed, fuel filter, glass wool, kieselguhr, light filter, oil filter, strainer, water filter

3. (noun) alters the frequency spectrum of signals passing through it
Related Words: electrical device

4. (verb) run or flow slowly, or in an unsteady stream: "reports began to dribble in."
Synonyms: dribble, trickle
Related Words: course, flow, leach, percolate, run

5. (verb) pass through; "Water permeated sand easily"
Synonyms: percolate, permeate, sink in
Related Words: infiltrate, penetrate



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