To sort, sift, or isolate.
This strainer should filter out the large particles.
To diffuse; to cause to be less concentrated or focused.
The leaves of the trees filtered the light.
To pass through a filter or to act as though passing through a filter.
The water filtered through the rock and soil.
To move slowly or gradually; to come or go a few at a time.
The crowd filtered into the theater.
To ride a motorcycle between lanes on a road
I can skip past all the traffic on my bike by filtering.
The process of passing something through a filter.
Something that passes through a filter.