Webgensis

Download Image Grid with Hover effects plugin to easily show grid layout of your images on WordPress 
site that looks elegant and attractive. This plugin creates a grid layout with short title and description on 
hover effect of the image.
It’s an easy to manage plugin that is available for free to download from the WordPress Plugin directory. 
You can easily show grid layout of images using the simple shortcode. The WordPress Plugin “Image Grid 
with Hover Effects” easily manages custom post type of images with the backend to display image grid 
beautifully.
You can link the displayed images internally or externally and the plugin will allow you to choose the 
option for whether you want to open these links in a new tab or not. 
The image grid will be responsive and shown beautifully on every sized device. To get the best output 
for image grid, the best option is to choose the images of equal sizes.

Image grid with hover effects

Responsive image grid with directional hover. Link your images to both external and internal pages.

chorton2227

WP Glossary Hover adds helpful tooltips to user defined glossary terms. Terms are highlighted and when hovered over shows the term definition.
<h4>Features</h4>
<ul>
<li>Only highlight first occurrence of term.</li>
<li>Specify if glossary terms are case sensitive.</li>
<li>Enable by post type, i.e. specify if posts, pages, etc. are parsed for terms.</li>
<li>Protect certain html tags, e.g. headers, links, quotes, etc., from being parsed for terms.</li>
<li>Uses <a href="http://jqueryui.com/tooltip/" rel="nofollow ugc">jQuery UI Tooltips</a>, with ability to custom various settings and themes.</li>
<li>Style highlighted terms, i.e. change color and underline style.</li>
</ul>

WP Glossary Hover

When hovering over a word or phrase show the user created definition.

Image grid with hover effects vs WP Glossary Hover