A widget that shows the Word of the Day as selected by TheFreeDictionary.com
Download tfd-wotd-wp-plugin.zip and unzip into the
From the WordPress admin backend, Activate the plugin through the 'Plugins' menu
From the WordPress admin backend, in the Widgets menu, drag-and-drop the widget to a widget container, such as your page sidebar. You can place this widget in any position you like.
Optionally, in the settings UI, specify the Title for the widget. By default it is simply "Word of the Day".
That's it !