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
Jazmyn	JAZ-min	English (Modern)
Sarai	SER-ie (English)	Biblical, Biblical Hebrew
LoÏC	-	French, Breton
Floortje	FLO:R-tyə	Dutch
Elvire	el-VEER	French
HuỆ	-	Vietnamese