From Longman Dictionary of Contemporary Englishbecause of somebody/somethingbecause of somebody/somethingused to say who or what causes something to happen or is the reason for something He had to retire because of ill health. We spent three hours waiting in the rain because of you!RegisterIn written English, people often prefer to use the expressions due to something, owing to something, or as a result of something, which sound more formal than because of something: Many businesses fail due to cash-flow problems. → because