What is the difference between a repository and a project?

[Franklin Siu]

I'm not sure what is the difference between a project and repository.  If I have several unrelated websites, do I create 1 project and multiple repository or do I create a project for each website with 1 repository?  

[Vasiliy_Zverev]

Project is a container for repositories. 

It is used to:

1. Group similar repositiries
2. Grant permission for all repositionries.

If you need to have the same read/write permission for set of sites - organise it into a single project.

If you going to store something else but websites on this instance - group all sites into a project.

[kim92se]

good explain !

[rashed50]

good clarification

[Ahmad401]

Nice explanation 

[jairogallardo]

thanks!

[Richard Herrera]

Project, It will assume that is something that is going to be created, and with it comes time requested, and type. In other words, something that is not a routine, and has time due.

Repository; is where to storage, put, keep the work, since it has to be left in somewhere!!

[Ajay Dhiman]

Can you tell me the difference in terms of [Set] and [Sub set] terminology ? i.e. 1 project can have multiple Repositories OR 1 Repository can have multiple projects OR if both are possible then whats a ideal or good practice OR its invalid question ?

So far  I never worked in 'Project' Option. Generally, we always talk about Repositories like Checkout or clone the repository in local.