Search Engine Optimization (SEO)
Search Engine Optimization really means taking steps to get a better rank.
SEO is the strategic process of making your website more visible to search engines.
Google and other search engines use complex algorithms to crawl through the web using spiders (sometimes called web crawlers).
While these search algorithms are quite good at what they do, they need help to understand exactly what you're providing and if they should place you high on the list for a particular search (query). This involves a systematic optimization of your entire site: every piece of content you want to rank highly in search will need to be properly optimized.