Pronunciation: /ˈfɪltər/
noun a device or piece of equipment used to remove impurities or unwanted elements from something
A1 I use a water filter to purify my drinking water.
A2 The Instagram filter made the photo look more vibrant.
B1 I set up a spam filter on my email to avoid junk messages.
B2 The air filter in my car needs to be replaced regularly.
C1 The software has a built-in filter function to sort data.
C2 She applied a filter to the search results to narrow down the options.
verb to pass (a liquid, gas, light, or sound) through a device to remove unwanted elements
A1 I filter my water before drinking it.
A2 She filters out any spam emails from her inbox.
B1 The software allows users to filter search results by date.
B2 The company uses a complex algorithm to filter out irrelevant data.
C1 The scientist filtered the mixture to separate the solid particles.
C2 The artist used a special lens to filter the light in his photography.
formal The laboratory uses a special filter to separate impurities from the liquid solution.
informal I always make sure to use a filter when brewing my coffee to get rid of any grounds.
slang I need to put on a filter before I post anything on social media.
figurative It's important to filter out negative thoughts and focus on the positive aspects of life.
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