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Here's some useful information about travel in Canada.
a useful tool/technique/gadget
Her book is a useful contribution to our understanding of how Mozart worked.
I was useful to them because I could speak French.
That basket would be useful for picnics.
Old pictures are useful for seeing how people used to dress.
Thanks. It's useful to know that.
Would it be useful for you to ask us some questions?
Keep a record of everything that might prove useful.
This is the British English definition of useful. View American English definition of useful.
getting smaller, weaker, or less important
… to reveal a small part of your intentions in order to attract support, without actually committing yourself to doing anythingadd a word
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