(~s, ~ing, ~ed)
1.
To ~ a substance means to pass it through a device which is designed to remove certain particles contained in it.
The best prevention for cholera is to boil or ~ water, and eat only well-cooked food.
VERB: V n
2.
A ~ is a device through which a substance is passed when it is being ~ed.
...a paper coffee ~.
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3.
A ~ is a device through which sound or light is passed and which blocks or reduces particular sound or light frequencies.
You might use a yellow ~ to improve the clarity of a hazy horizon.
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4.
If light or sound ~s into a place, it comes in weakly or slowly, either through a partly covered opening, or from a long distance away.
Light ~ed into my kitchen through the soft, green shade of the cherry tree.
VERB: V into/through n
5.
When news or information ~s through to people, it gradually reaches them.
It took months before the findings began to ~ through to the politicians...
News of the attack quickly ~ed through the college.
...as indications ~ in from polling stations.
...the horror stories which were beginning to ~ out of Germany.
VERB: V through to n, V through n, V in , V out of n
6.
A traffic ~ is a traffic signal or lane which controls the movement of traffic wanting to turn left or right. (BRIT)
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