YouTube Subtitle Dictionary

by Chillax · Education

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Click any word in YouTube subtitles to instantly see its AI-generated contextual definition.

Users

+3 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#200K

#167K among extensions

Version

1.1.0

updated 14 Jun 2026

Users

monthly, 4 months

Latest, 16 Oct 2026: 9 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 16 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About YouTube Subtitle Dictionary

In this extension, when you click on a word in Youtube subtitles, a small pop-up appears, showing you the selected word's meaning in the context of the video. The word you selected can be either a generic word, a private name, or a scientific term. It has language detection, so it works for different languages as well. After getting the extension, don't forget to click on the extension and follow the instructions listed there to get it working. Enjoy!