Organic 
Organic results are the “real” results. They’re displayed below the Paid result.
Paid 
Paid results are the ads that always appear at the top of the results page.
Featured Snippet 
Featured Snippets are small blocks of useful information regarding the search – sort of like the Answer Box, except that Featured Snippets contain source links.
Images 
Image results are displayed beside organic results or separately in the Images tab of a results page.
Videos 
Video results are represented in a carousel format for horizontal scrolling.
Answer Box 
Answer Boxes are like Featured Snippets. They appear at the top of the results page and provide a direct response to queries
Knowledge Graph 
The Knowledge Graph is a box that contains information regarding the search term – enough information, in many cases, to prevent click-through to another site. On a PC or laptop, it appears on the right side of the results page.
Google Review 
Review results are ratings or excerpts from evaluations.
