From Longman Dictionary of Contemporary Englishcast light on/onto somethingcast light on/onto somethingINFORMATIONto provide new information about something, making it easier to understand research findings that cast new light on the origin of our universe The numerous biographies of Baldwin cast little light on the subject. → cast
Examples from the Corpus
cast light on/onto something• We use this to cast light on a metaphor of which we are given no other interpretation.• The convergence of the techniques will cast light on perspectives and how they are controlled.• The incident has cast light on the creeping privatisation of the drug war.• The different ways in which superantigens activate T cells casts light on the pathogenesis of infectious disease.• The investigation explores the possibility of using probate inventories to cast light on this and related questions. 