Keywords in SEO play a pivotal role in enhancing your visibility online. But what really is an SEO keyword? Let's explore.

In online advertising, a keyword is a word or phrase that users enter into search engines when they are searching for a certain service, product or information. Search engine optimization (SEO) heavily depends on the use of these keywords to rank websites.

The power behind SEO keywords lies in their ability to associate what users are searching for to the content that what is an SEO keyword your website is providing. Effectively using these keywords will help draw the right audience and boost the likelihood of conversions.

Having established the concept of an SEO keyword, let's look at the efficient use of keywords. Improving the use of keywords demands a balance. You want to include relevant keywords to get the attention of search engines but not overly saturate your content with them.

One way is placing the keyword in your content’s headline. This not only helps in optimization, but also makes your content more likely to be relevant to the searcher's query. Consider also using keywords in the metadata and headers of your website, as these are places where search engines tend to look.

Furthermore, it's crucial to choose keywords that connect with your targeted market. This signifies understanding how they communicate, their searching habits and their requirements.

In conclusion, a well-chosen SEO keyword can be a connection between what a person is looking for and the service or information you provide. It's a critical tool to succeed in the aggressive world of digital marketing. However, success hinges on its effective and balanced use.