Level 2389 - 6 Letters

Here's the 6 letter solution for Level 2389 in 4 Pics 1 Word

4 pics 1 Word Level 2389 Image 1 4 pics 1 Word Level 2389 Image 2 4 pics 1 Word Level 2389 Image 3 4 pics 1 Word Level 2389 Image 4
R
A
D
I
U
S