In this paper, we show that by integrating existing NLP techniques and Semantic Web tools in a novel way, we can provide a valuable contribution to the solution of the knowledge acquisition bottleneck problem. NLP techniques to create a domain ontology on the basis of an open domain corpus have been combined with Semantic Web tools. More specifically, Watson and Prompt have been employed to enhance the kick-o ontology while Cornetto, a lexical database for Dutch, has been adopted to establish a link between the concepts and their Dutch lexicalization. The lexicalized ontology constitutes the basis for the cross-language retrieval of learning objects within the LT4eL eLearning project.