anyone's guess

Something that no one knows for sure, as in Will it rain next Sunday? That's anyone's guess. [Mid-1900s] Also see your guess is as good as mine.

Name	Pronounced	Usage
Morven	MAWR-ven	Scottish
VÉRÈNe	-	French
Horea	-	Romanian
Shantanu	-	Hinduism, Indian, Hindi, Marathi, Bengali
Burns	[bə:ns]
Masamba	-	Eastern African, Yao