Algorithm is a programming rule that tells how search engine indexes contents.
Alt Attribute is the alternative text description for images.
Anchor Text is the text part of the link. This is used by search engines as an important ranking factor.
Back links are inlinks, inbound links, incoming links (whatever you want to call it) pointing to a web page.
Banned this happens when search engine blocks your site from appearing in its SERP.
Black Hat SEO this is the optimizations that are against the guidelines of search engine.
Blog is a website also known as "weblog". It is an online diary with regular entries of commentary, description, events, or other materials. Entries are commonly displayed in reverse-chronological order.
Bot short for robot.
Cache is the copies of webpages stored on internet user's hard drive or in search engines database. This is why web pages loads quickly when they hit the back button in their web browsers.
Cloaking is a black hat SEO technique in which the content presented to the search engine spider is different than the content presented to visitors.
Cookie is the information stored on searchers computer by a web server while accessing a particular webpage.
Directory is where websites are group into categories with description by group of human editors.
Forum or message board is a place where discussions on related topics takes place. Forums are also used by search engine optimizers and webmasters for information exchange.
Google is the world's number one search engine founded by Standford University students Sergey Brin and Larry Page in 1998.
Google bot is a search bot used by Google to collect documents from the web to build a searchable index for the Google search engine.
Gray Hat SEO is an search engine optimization using both Black Hat and White hat techniques.
Heading tag is an HTML tag often used to denote a section heading of a web page. SE pays attention to text marked with a heading tag.