Dictionary for multiple languages.
This Extension have offline support for Webster's Unabridged English Dictionary + Oxford UK Dictionary (from the Gutenberg Project, compiled August 22, 2009).
For other languages it fallbacks to wikipedia definitions.
You can support this project by becoming my Patreon member here: https://www.patreon.com/fxnoob
Supports more than 100 languages.
This is an Open Source Product. Hosted on github here: https://github.com/fxnoob/dictionary