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English definition of “boost”

boost

verb [T] uk   /buːst/ us  
B2 to improve or increase something: The theatre managed to boost its audiences by cutting ticket prices. Share prices were boosted by reports of the president's recovery. I tried to boost his ego (= make him feel more confident) by praising his cooking.

boost

noun [C usually singular] uk   /buːst/ us  
B2 the act of boosting something: The lowering of interest rates will give a much-needed boost to the economy. Passing my driving test was such a boost to my confidence.
(Definition of boost from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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