"I'm with you, sister!" (4)

I believe the answer is:

amen

(Other definitions for amen that I've seen before include "Response to prayer" , "Religiously 11 [THE LASTWORD]" , "Name for end to prayer" , "Last word of prayer" , "Final word in prayer" .)

I've seen this clue in the Universal.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.