filter
C1Frequent NGSL-3UK /ˈfɪltə(r)/US /ˈfɪltər/
Meaning
noun
a device containing paper, sand, chemicals, etc. that a liquid or gas is passed through in order to remove any materials that are not wanted
“an air/oil filter”
verb
to pass liquid, light, etc. through a special device, especially to remove something that is not wanted
“All drinking water must be filtered.”
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“You know, people talk about like, the sort of, the great filters,”
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