Synopsis Forestry is a broad subject which deals on multi-disciplinary aspects like Silviculture, forest soils, properties of soils, forests policies, forests law, botany of tree species, surveying protection, logging which includes felling and conversion, transport, storage, mensuration, grading timber etc. There is no horizon end for the subject forestry, in which there is tremendous progress in recent years. The role of forestry in not just limited to economic rewards but enhances the quality of life making the place more attractive to live and work. The coverage of terms is very broad and it is very hard to think more cherished source of information in forestry at a glance. Hence an attempt has been made to bring out a comprehensive glossary of technical terms used in the theory and practice of forestry. Each definitions is considered a short lesson to be understandable as an independent entry. Moreover diagrammatic representations are also included in each subject for easy understanding of the terms. The aim of the glossary is to provide a concise and enough information and examples to give the reader a sound knowledge of forestry. The glossary is made in such a way that it caters to all kinds of audiences, be it an amateur in the field or a veteran in the field and helps them in teaching and learning of forestry. Sincere efforts have been taken to make to readers immerse in the wonderful discipline of forestry.