Comprehensible input refers to using language that children are capable of understanding, and at the same time holds challenges for them. An important part of making this language comprehensible is providing it in natural, communicative situations that are meaningful to children and this will help children in meeting the challenge.In Theory of Second Language Acquisition, Stephen Krashen proposed the five main hypotheses, the input hypothesis is one of them.According to the Input hypothesis, comprehensible input refers to the input somewhat above the learner's current level of mastery.It helps learners in language learning by making them able to communicate efficiently, acquire language naturally and understand the text effectively.Language is acquired not when the input is repeated several times, but when that input is understood, when the learner understands what it means and can make use of it. The use of graphic organizers, gestures, facial expressions, and other visual aids can assist with comprehensible input.For example, if children in your class know some words in English then comprehensible input might mean using these words in sentences that are meaningful for them.Hence, it is clear that comprehensible input means in language learning is exposure to meaningful oral and written language somewhat above the learner's current level of mastery.