The Windows Dictionary of Astronomy is a comprehensive computerised astronomical dictionary. This user-friendly software package for Windows 3.1, 95 or NT incorporates some 2000 entries with associated terms incorporating direct hypertext links to related educational articles, all geared towards promoting a deeper understanding of astronomy. The program is designed to assist in the pursuit of knowledge at all levels, and will prove an invaluable resource to those engaged in the study of astronomy everywhere, whether at school or university or as amateur or armchair astronomers. The WDA would even serve as a useful general reference for professionals.