Abstract
This study investigates what L2 learners perceive as the impacts of their engagement through self-made video (SMV) creation on their vocabulary development (VD). Employing a qualitative inquiry, this study involved 12 Indonesian L2 learners attending an English for Specific Purposes (ESP) Vocabulary in Context course at a private university in Indonesia. A semi-structured interview was used to collect the data. The study found that L2 engagement in SMV creation led to repeated-driven retention, contextualisation, and vocabulary comprehension, promoting VD. The findings suggest that L2 engagement in SMV creation promotes high exposure to new vocabulary through planning, researching, scripting, filming, and editing. The findings also indicate the importance of L2 learners’ engagement in the vocabulary learning process, as it fosters the ownership of learning, leading to improved learning motivation and vocabulary knowledge. The study provides implications for L2 instructors and educators, suggesting incorporating SMV creation into language instruction to promote VD, improve long-term retention, and enhance learner engagement and motivation.