Offline English to Sinhala glossary for professionals, teachers and students. The Jayamaga glossary has about 110000 Sinhala meanings under following 24 subjects.

- Agriculture
- Archeology
- Botany
- Chemistry
- Clothing Knitting and Laundering
- Communication
- Counselling
- Dramatic Art and Literature
- Economics
- Environment
- Geography
- Home Management
- Information Technology
- Lacquer work
- Law
- Literary Criticism
- Management
- Metal Technology and Motor Mechanism
- Molecular Biology
- Painting and Sculpture
- Pottery and Ceramics
- Surveying
- Wood Work
- Zoology