filter

noun1 of 2

device to remove unwanted substances from a liquid or gas

• “The recipe says you have to filter the water first.”Tatoeba
• “In swimming pools, water is continuously pumped through a filter.”Tatoeba

Sentences from Tatoeba show real usage. A word can have several meanings, so a sentence may use another one.

verb2 of 2

To sort, sift, or isolate.