SEO keywords play a pivotal role in raising your online visibility. However, let's delve deeper and understand, what exactly is a keyword in SEO.

In internet marketing, a keyword is a particular term or expression that individuals input into web browsers when they are trying to find a specific service, product here or information. Search engine optimization (SEO) heavily is based on the use of these keywords to rank websites.

The essence behind SEO keywords lies in their ability to link what users are searching for to the content that your website offers. Strategically using these keywords will help pull in the right audience and improve the likelihood of turnover.

Having established the concept of an SEO keyword, let's look at methods for efficiently using keywords. Enhancing the use of keywords demands a balance. You'll want to include relevant keywords to attract 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 headings of your website, as these are points where search engines often look.

Furthermore, it's crucial to choose keywords that align with your audience. This implies understanding their lingo, their search behaviors and their needs.

To conclude, a well-chosen SEO keyword can be a connection between the user's search and your website's offerings. It's a crucial tool to be successful in the cut-throat world of digital marketing. However, the best results can only be achieved by using it effectively and responsibly.