Understanding terminology, definitions and abbreviations in biotherapies is crucial for driving innovation in the field. This specialized language forms the foundation for clear communication among researchers, clinicians and stakeholders. It ensures that everyone involved in the development, implementation and regulation of biotherapies is on the same page, reducing the risk of misunderstandings that can lead to errors or delays. Mastery of the 'lexicon' also enables professionals to stay current with the latest advancements, fostering collaboration and accelerating translation of groundbreaking research into effective treatments. By being familiar with the terms, one can be empowered to contribute to the cutting edge of biotherapy innovation.