Blueprint word means

[Everynone]

Have a look here, basic scripting explained:

https://docs.unrealengine.com/en-us/…ints/Scripting

Also, 600+ super short and informative nodes (and more) videos:

https://www.youtube.com/watch?v=xlMR…u8BszWL-7ePvco

And API:

Unreal Engine Blueprint API Reference