A cobot is a collaborative robot that is designed to work alongside humans in a specific space.
Robots are designed to work independently to humans. They are usually found in industries and applications where repetitive tasks or hazardous environments are found. A cobot is designed to work alongside humans in a specific space.
An example of a cobot would be a Universal Robot or the igus® ReBeL®. Although very different in terms of what they are designed for, both perfect examples of collaborative robots.