Great deal and Jillion

Great deal noun - (often followed by `of') a large number or amount or extent.

Jillion and great deal are semantically related in multitude topic. In some cases you can use "Jillion" instead a noun phrase "Great deal", when it comes to topics like heap.

Jillion noun - A very large indefinite number (usually hyperbole).

Great deal and jillion are semantically related in heap topic. Sometimes you can use "Great deal" instead a noun "Jillion".