Lexilize is a flashcard-based learning tool that allows users to create and study custom flashcard sets for vocabulary in over 118 languages as well as other academic subjects. It employs spaced‑repetition algorithms and interactive games to support memorisation, and provides offline access, audio playback speed control, and AI‑powered auto‑translation. Cards can include transcriptions, images and dialect information to aid pronunciation practice. The app is aimed at students, teachers and language learners who want to expand their vocabulary efficiently.