Developed and integrated a Lemma Greek-English Dictionary feature with over 31,000 entries into the koreader/koreader repository, enhancing multilingual lookup and localization support. The work involved updating the dictionary data source to version 1.3.3, ensuring users access the most current information. Implementation was carried out through two linked commits for clear traceability and maintainability. Utilizing Lua and front end development skills, the developer focused on improving language tooling infrastructure while laying groundwork for future documentation and testing. No major bugs were reported during this period, reflecting a stable integration process and alignment with ongoing business goals for language support.