no way to tell

(There's) no way to tell.

No one can find out the answer. Tom: How long are we likely to have to wait before the plane takes off? Clerk: Sorry, sir. There's no way to tell.

Name	Pronounced	Usage
GyÖRgyike	DYUUR-dyee-ke	Hungarian
Mcmillan	[mək'milən]
Guo	-	Chinese
Lene	LE-nə (German), LE-ne (Danish, Norwegian)	German, Danish, Norwegian
Deniel	-	Breton
Sulaiman	-	Arabic, Indonesian, Malay