system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The difference between a university and a college?

Is there a difference at all? I've always wondered this.
gpt
Traditionally a college teaches one thing or a set of related things.  A University is a collection of colleges. A University is made up of many colleges. 

The words aren't that specific anymore.  Some schools are still called colleges for historical reasons even though they have a bunch of colleges. A good example is the College of William and Mary. There is no reason that William and Mary isn't a University; it has many schools in it.  We just call it a College because that has been it's name for a long time.