Is the mask the same as the matte in PR? If not, what's the difference between them?

[plusrong]

I've always had a question, what is a mask? What is a mask?

Thank you for your reply.

[caroline_edits · Accepted solution]

Great question, plusrong!

Masks are used in video editing to manipulate images. The main thing I use masks for is to remove objects from my video that I don't want there. There is no masking capability in Rush, but you can use masks in Premiere Pro! Here's a community-made video with more information: 
https://www.youtube.com/watch?v=2_RllynGJO4

Hope this helps! 

Caroline