Although "Ivy League" has a concrete and specific definition, it's frequently used in an unconsciously metaphorical sense to refer to other schools. Schools in this nebulous Ivy League have certain characteristics in common:

- high prestige
- extremely selective
- very well endowed (err...)
- high tuition
- academic reputation

In 2000, the average cost of tuition and fees at Ivy League schools was $32,020, with most schools varying from that level by no more than $1,200. Their endowments register in the billions of dollars, with 40% of alumni contributing to Yale in 2000, and the William and Flora Hewlett Foundation giving $400 million to Stanford in 2001.

Articles about Ivy League schools that do not originate in one of the 8 Ivy Leaguers frequently include Stanford, MIT, Johns Hopkins, and so on.