Level 2419 - 4 Letters

Here's the 4 letter solution for Level 2419 in 4 Pics 1 Word

4 pics 1 Word Level 2419 Image 1 4 pics 1 Word Level 2419 Image 2 4 pics 1 Word Level 2419 Image 3 4 pics 1 Word Level 2419 Image 4
R
O
O
F