Definition of bring about phrasal verb from the Oxford Advanced American Dictionary

 

bring about

 phrasal verb
phrasal verb
 
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Phrasal Verbs

bring somethingabout

 
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to make something happen synonym cause What brought about the change in his attitude? Language BankcauseX causes Y Childhood obesity can cause/lead to long-term health problems. Changes in lifestyle and diet over the last twenty years have caused/led to/resulted in a sharp increase in childhood obesity. Several factors, including changes in diet and lifestyle, have contributed to the increase in childhood obesity. Research suggests that fast food and soft drinks directly contribute to childhood obesity. Genetics, lifestyle, and diet are all important factors in cases of childhood obesity. Even small changes in lifestyle and diet can bring about significant weight loss.
See the Oxford Advanced Learner's Dictionary entry: bring about