Oxford Dictionary English cost-benefit noun noun BrE BrE//ˈkɒst benɪfɪt// ; NAmE NAmE//ˈkɔːst benɪfɪt// [uncountable] (economics) Add to my wordlistjump to other resultsthe relationship between the cost of doing something and the value of the benefit that results from it cost-benefit analysisSee cost-benefit in the Oxford Learner's Dictionary of Academic EnglishSee cost-benefit in the Oxford Advanced American DictionaryCheck pronunciation: cost-benefit oxfordlearnersdictionaries.com