FILTERS

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Scrabble letter values: F₄I₁L₁T₁E₁R₁S₁ = 10

Definition

FILTERS is the plural of FILTER.

noun FILTER: device that removes something from whatever passes through it.

“He runs an email filter to catch the junk mail.”
“He's got no filter, and he's always offending people as a result.”
“If (1) the universal set (here, the set of natural numbers) were called a "large" set, (2) the superset of any "large" set were also a "large" set, and (3) the intersection of a pair of "large" sets were also a "large" set, then the set of all "large" sets would form a filter.”