This book constitutes the thoroughly refereed post-proceedings of the 5th International Conference on Application of Natural Language to Information Systems, NLDB 2000, held in Versailles, France, in June 2000. The 29 revised full papers presented together with two invited papers and seven posters and demonstrations have passed through two rounds of reviewing and selection. The book offers topical sections on linguistics in information design, temporal databases, word-sense disambiguation, semantic relationships in databases, semantic and contextual document retrieval, natural language generation for answering email and OLAP, NLP techniques for information retrieval, Web information retrieval, technical databases, users and interactions in Web querying, and conceptual patterns.