SEO stands for Search Engine Optimization. It is the process of improving a website so it ranks higher on search engines like Google. SEO involves using the right keywords, creating quality content, improving website speed, building backlinks, and making the site user-friendly. The goal of SEO is to increase visibility, attract more organic (free) traffic, and help businesses reach their target audience online. Effective SEO boosts credibility, improves brand awareness, and helps websites perform better than competitors.