A device that cleans liquids or gases by removing unwanted parts.
Cigarettes with a filter are less harmful.
A device that allows only certain light or sound to pass through.
The camera filter blocks bright light.
A program that blocks unwanted information or emails.
The email filter stops spam.
A traffic light that allows turning while others wait.
The filter light lets cars turn left.
A tool that changes how a photo looks.
Use a filter to make the photo brighter.
To clean a liquid or gas by removing unwanted parts.
You should filter water before drinking it.
To check emails or websites to block unwanted content.
The system will filter harmful emails.
To move slowly in a particular direction.
People began to filter into the room.
To become known slowly.
News started to filter out about the event.
To enter a place slowly or in small amounts.
Light filtered through the window.
To turn at traffic lights while others wait.
Cars can filter left when the light is green.