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A person or thing that brings one aid, good fortune, or good luck. That bus almost hit you! You must have been born under a lucky star to come out unscathed. My mom has been my lucky star. There's no way I could have made it through such a tough situation without her. The crisis wiped out most other businesses, but it actually turned out to be a lucky star for us. Our orders have gone up nearly 200% in the last month!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.