Description
This plugin adds a widget that shows random word and it’s definiton. You can select how many words to show or override to show the exact word you need. Words are stored in data/dict.json file. You can add or update words from admin dashboard.
Screenshots
This is how the widget looks in twentyten, with no styling. 
Widget options 
Settings page
Reviews
Disel
September 3, 2016
An interesting plugin. I just need this.
But the search does not work according to. Dear developer fix please!
Contributors & Developers
“Dictionary” is open source software. The following people have contributed to this plugin.
Contributors
Translate “Dictionary” into your language.
Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0
*Plugin’s initial publication