Plugin

In plain English

WordPress on its own is fairly basic — it's the engine. Plugins are the add-ons that give it features. Want a contact form? There's a plugin. An online store, a booking calendar, a photo gallery, automatic backups? Plugins, all of them. You install the ones you need and skip the rest, which is how a simple WordPress site can do almost anything.

Why it matters for your business

Plugins are WordPress's superpower and its soft spot at the same time. They let you add exactly what your business needs — but each one is a piece of software that has to be kept updated and occasionally stops getting along with the others. A typical small-business site runs a dozen or more, and they're the most common source of things quietly breaking.

A good rule of thumb

Use the plugins you genuinely need, from reputable sources, and keep them updated — but don't pile on every shiny add-on you find. Fewer, well-maintained plugins means a faster, safer, more stable site.