The acronym SEO stands for Search Engine Optimization, a crucial process aimed at improving a website's visibility on search engines like Google. It involves optimizing website content and structure to rank higher in search results, thereby increasing organic traffic. SEO is important because it helps businesses reach potential customers actively searching for relevant products or services. A well-implemented SEO strategy can lead to higher visibility, increased credibility, better user engagement, and ultimately, improved conversion rates, contributing to overall business success.