American English

Definition of useful adjective from the Oxford Advanced American Dictionary



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that can help you to do or achieve what you want a useful gadget useful (to do something) It can be useful to write a short summary of your argument first. useful (to somebody) He might be useful to us. useful (for something/for doing something) These plants are particularly useful for brightening up shady areas. Don't just sit watching TV —make yourself useful! This information could prove useful. Your knowledge of German may come in useful (= be useful in a particular situation). Some products can be recycled at the end of their useful life. opposite useless
adverb The money could be more usefully spent on new equipment. Is there anything I can usefully do here?
See the Oxford Advanced Learner's Dictionary entry: useful