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

In digital marketing, a keyword is a word or phrase that individuals input into web browsers when they are seeking a certain service, product or information. Search engine optimization (SEO) heavily depends on the use of these keywords to position websites.

The power behind SEO keywords lies in their ability to link what users are searching for to the content that you’re offering on your website. Wisely using these keywords will help lure the right audience and increase the likelihood of conversions.

Having established what we mean by the term of an SEO keyword, let's look at the efficient use of keywords. Optimizing the use of keywords requires a balance. You want to include relevant keywords to appeal to search algorithms but without stuffing your content with them.

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

Additionally, it's important to choose keywords that connect with your target market. This signifies understanding their lingo, their searching habits and their needs.

In summary, a well-chosen SEO keyword can act as a bridge between the user's query and your more info online content. It's a critical tool in achieving success in the cut-throat world of digital marketing. However, the best results can only be achieved by using it effectively and responsibly.