Glossary

The ISSUP glossary brings together terms and concepts commonly used in relation to substance use, drug supply reduction and related fields. It is intended as a practical reference for professionals, practitioners, researchers, educators, students and others working in or interested in the field.
The glossary includes terms that may have different meanings depending on the context in which they are used, as well as language that has evolved over time. Where terminology is debated or changing, the entries aim to provide context and support a better understanding of how particular terms are used.
The definitions and explanations have been reviewed and adapted from established reference materials and sources. They are intended to support learning, communication and further exploration rather than to prescribe a single terminology for every setting.
We hope this glossary provides a useful starting point for understanding key terms and encourages the use of language that is accurate and informed.