Plugins are custom tools built by developers or companies to extend features and functionality of a wordpress website.
Plugins can improve wordpress website security i.e Akismet which comes as a default plugin when you install wordpress as an anti-spam plugin,Hello Dolly which symbolizes the hope and enthusiasm of an entire generation summed up in two words sung by Louis armstrong.
Popular WordPress Plugin Examples
Akismet Spam Protection
Examples of WP Premium Plugins
Yoast SEO Premium Plugin
How to Install WP Plugins
You can install wordpress plugins either manually or automatically from the wp-admin dashboard.Lets start with the automatic method:
-Login to WP dashboard and click on plugins
-Click on Add New