WordRel.com

• device that removes something from whatever passes through it

  derivation	filtrate
  hypernym	device
  hyponym	air cleanerair filterbacteria bedcarbon filtercoffee filterdenitratordiatomaceous earthdiatomitediffusing screendrain basketfilter bedfuel filterglass woolkieselguhrlight filtermembrane filteroil filtersponge filterstrainerwater filter

• an electrical device that alters the frequency spectrum of signals passing through it

  hypernym	electrical device
  hyponym	high-pass filterlow-pass filter

• remove by passing through a filter

  synonym	filter outfiltrateseparate outstrain
  derivation	filtratefiltrationfiltration
  other	filtrationfiltration
  hypernym	separate

• pass through

  synonym	percolatepermeatesink in
  derivation	filtrationfiltration
  other	filtrationfiltration
  hypernym	penetrateperforate
  hyponym	infiltrateinfiltrate
  is caused by	percolate

• run or flow slowly, as in drops or in an unsteady stream

  synonym	dribbletrickle
  hypernym	coursefeedflowrun
  hyponym	leachpercolate