1. An apparatus for a language expression based on a context and intent awareness, the apparatus comprising: a context recognizing unit to recognize a context of a user by analyzing sensing information collected from the user's environment; an intent recognizing unit to recognize an intent of the user based on the recognized context; a language generating unit to generate a language expression based on the recognized context and the recognized intent; and an output unit to convert the generated language expression into a language that is understandable to the user, and to output the converted language expression.