La definici??n conceptual determina nuestra reflexi??n y nuestra acci??n. Por ello, una clara comprensi??n del concepto de ???cultura??? y sus derivados nos ayudar?? a programar e implementar una ense??anza de la lengua desde la perspectiva intercultural. Este art??culo pretende clarificar las definiciones de cultura, multiculturalidad, pluriculturalidad e interculturalidad; a modo de conclusi??n, se proponen dos l??neas generales de actuaci??n en educaci??n ling????stica coherentes con esta definici??n conceptual: la concienciaci??n cultural y la socializaci??n rica.; The definition of concepts determines our reflection and our action. Therefore, a clear understanding of the concept of ???culture??? and its derivations will help us plan and implement our language teaching from an intercultural perspective. This article aims at clarifying the definitions of culture, multiculturalism, pluriculturalism and interculturality; as a conclusion, two general lines of action in language education are proposed coherent with those definitions: culture awareness and rich socialization.