International Journal of Computational Linguistics Research Tatyana Ivanova 11 1 2020 https://doi.org/10.6025/jcl/2020/11/1/1-11 http://www.dline.info/jcl/fulltext/v11n1/jclv11n1_1.pdf English language is accepted as international language for publishing research in e-learning and Semantic Web area, but people are needed from representing data and knowledge in his native language. This paper proposes an approach for mapping and enrichment of domain ontologies, labeled in two natural languages (bilingual ontologies). Our approach combines syntactical, structural and semantic mapping. It also can reuse existing mappings and use learner’s or expert’s feedback to improve mapping. We discuss the application of our approach for mapping ontologies describing e-learning content.