Keywords in SEO play a pivotal role in enhancing your visibility online. So what exactly is an keyword in SEO? Let's break it down.

In online advertising, a keyword is a word or phrase that individuals input into web browsers when they are trying to find a certain service, product or information. Search engine optimization (SEO) heavily depends on the use of these keywords for website ranking.

The essence behind SEO keywords lies in their ability to connect what users are searching for to the content that is available on your website. Effectively using these keywords will help attract the right audience and increase the likelihood of conversions.

Having established the definition of an SEO keyword, let's look at how to use keywords efficiently. Enhancing the use of keywords demands a balance. You will want to include relevant keywords to get the attention of search engines but without overloading your content with them.

One way is to place the keyword in your content’s title. This not only helps in optimization, but also makes your content more relevant to the searcher's query. Also, consider using keywords in the metadata and headers of your website, as these are points where search engines often look.

Additionally, it's important to choose keywords that resonate with your target audience. It means understanding their lingo, their searching habits and their demands.

In conclusion, a well-chosen here SEO keyword can be a connection between what a person is looking for and the service or information you provide. It's a essential tool to succeed in the competitive world of digital marketing. However, the best results can only be achieved by using it effectively and responsibly.