waste - definition in the American English Dictionary - Cambridge Dictionaries Online

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English definition of “waste”

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waste

noun  us   /weɪst/

waste noun (BAD USE)

[U] a bad use of something valuable that you have only a limited amount of: a waste of time/money a waste of talent/ability I felt like being there was just a waste.

waste noun (UNWANTED MATTER)

unwanted matter or material of any type, esp. what is left after use: [C] hazardous/toxic wastes [U] Most people don’t recycle kitchen waste. biology Human waste is excrement. Waste disposal is the process or system for getting rid of unwanted material by burying it, burning it, or dropping it in the sea.

waste

verb [T]  us   /weɪst/

waste verb [T] (BAD USE)

to use something without care or thought: Why should I waste my time on her? You’re just wasting your money buying that stuff.
Phrasal verbs
(Definition of waste from the Cambridge Academic Content Dictionary © Cambridge University Press)
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