noun
a system of waste disposal in which households are charged based on the amount of waste they produce
preposition
used to indicate the method or manner in which waste disposal is carried out
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The city council is considering implementing a pay-as-you-throw waste management system.
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I heard they might start a pay-as-you-throw program for garbage collection.
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They're talking about making us pay for each bag of trash we throw out.
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The pay-as-you-throw policy really makes you think twice about how much waste you produce.