Words matter. Nowhere is this truer than in legislation, where word choices—often the product of long debate and imperfect compromise—determine the scope and impact of a law. Legislative history can speak volumes about those word choices, and the unique legislative history of the California Consumer Privacy Act of 2018 (CCPA) only highlights the importance of understanding the terms used in the act. We thus focus here on discussing some of the CCPA’s key definitional terms.