Professionals in the water sector have a water-specific vocabulary (water supply, purification of urban, rural and industrial effluent, and the integrated management of water resources). Foreign language courses do not include the specialised vocabulary.The AQUA'Lingua project is designed to create a language learning tool for water professionals. To this end the partnership includes sectoral players and participants, covering 17 European languages (11 official languages of the EU and 6 languages of the applicant countries: e.g. BG, CZ, HU, PL, RO, SK).Hence a compendium of words and terms will be developed on the Internet. It will be based on a visual approach with the aid of drawings and photographs; the pronunciation will be attached in a sound file. The 17 languages will be treated simultaneously, and access to the site will be free of charge from the very start. Interactivity will permit users who are not members of the partnership to provide input for the glossary.The partners are committed to disseminating information on the project results via their networks and Internet sites, by writing regular articles or contributions, and via communications in the specialist press and professional fairs.