FEATURES View definitions easily as you watch videos. When you watch videos with Source Player, you can click the word or select the phrase in the subtitle to display the definition in pop-up. It's far more efficiently than search the definition in a separated dictionary. View definitions in configurable web dictionaries. Other than the native macOS dictionary, Source Player comes with 10 selected web dictionaries, each one has its own character and benefit. You can even change an existing web dictionary to your favorite one. Powerful playback functionality. Source Player is based on mpv, one of the most powerful media player in the world. Source Player supports almost all common video types and playback functionality. Browse and play YouTube videos. Source Player comes with build-in YouTube browser and player. Your favorite channels will be your valuable learning resources. Save word or phrase to word book. You can save the words you met in videos to word book for later study. Download subtitles automatically Source Player is integrated with two subtitle search engines, you can search and download the subtitles for the current movie with one click. Hide hardcoded subtitle Some video files may hardcoded the subtitle onto the video frame. There is no easy way for a traditional video player to hide it. Source Player fix this problem with an elegant solution.