noun
Rate refers to the amount of one currency or commodity exchanged for another.
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The financial advisor warned against being a rate tart and advised diversifying investments.
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She's known as a bit of a rate tart, always chasing the best deals on savings accounts.
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Don't be such a rate tart, just pick a credit card and stick with it.
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In the world of travel hacking, being a rate tart can help you score free flights and hotel stays.