challenge on

challenge someone on something

to dispute someone's statement, remarks, or position. I think Fred is wrong, but I won't challenge him on his estimate.

Name	Pronounced	Usage
Chiara	kee-AH-rah	Italian
Judas	JOO-dəs (English)	Biblical
Shraga	-	Jewish
Kayleah	KAY-lee	English (Rare)
Roth	[rɔ:θ]
Milorad	-	Serbian, Croatian