a king's ransom

a large amount of money A visit to one of those amusement parks can cost a king's ransom.

Usage notes: often used with worth or cost, as in the example

a very large amount of money (not used with the ) She was wearing a diamond necklace which must have been worth a king's ransom.

Name	Pronounced	Usage
Olayinka	-	Western African, Yoruba
Dalimil	-	Czech, Slovak
Topsy	TAHP-see	English (Rare)
Johanan	-	Biblical
Lavone	-	English (Rare)
Lugus	-	Celtic Mythology