Latent Semantic Indexing (LSI) Keywords are terms and phrases that are semantically related to a primary keyword. LSI keywords help search engines understand the content on a webpage in context, allowing them to deliver more accurate search results. Incorporating LSI keywords into website content can improve SEO by making the content more relevant to a broader array of search queries. This practice not only enhances the richness and depth of the content but also increases the chances of ranking higher in search engine results pages (SERPs) by aligning with how users naturally search for information.