Playwork is a recognised profession in the United Kingdom (UK) and is currently a growing area of interest internationally. However, debates about the nature and purpose of playwork have raged in the playwork field since the profession was invented in the early adventure playgrounds. This study is the first to capture data about what the now international playwork workforce understands to be the purpose of playwork. The International Playwork Census (IPC) was an online survey which asked participants from 19 different countries about their knowledge and experience of playwork. This paper reports on one question from the IPC: what is the purpose of playwork? A thematic analysis was undertaken from 193 responses on what was considered "the purpose of playwork" and three themes emerged: Facilitate and Provide for children's play; Support and Advocate. This paper describes how these three themes reflect both the historical change in understandings of the purpose of playwork and how different understandings of playwork are developed through the experience of practitioners working in range of different contexts.