Language experience is the cumulative exposure to and engagement with linguistic input across an individual's lifespan and environments. This concept, foundational in fields such as linguistics, psycholinguistics, and language acquisition, investigates how the characteristics of this exposure (e.g., quantity, quality, diversity, timing, interactivity) influence linguistic development, processing abilities, and representational knowledge, holding significance for explaining individual differences in language outcomes and informing theories of language learning and cognitive processing.