Install Yomitan in your browser
Open the Yomitan settings page
Choose the languages and dictionaries you want
Import dictionary files into Yomitan
Enable the Yomitan extension
Hover over words on supported webpages to see definitions
Click a word to open detailed dictionary information
Use the search feature to look up words manually
Add words to your study or flashcard deck if configured
Adjust display, hotkey, and popup settings as needed
Use sentence mining features if you want to save example sentences
Export or sync your study data if supported