Ivy League
noun
- a group of long-established universities in the eastern US having high academic and social prestige. It includes Harvard, Yale, Princeton, and Columbia常春藤联合会（美国东部一些历史悠久大学的联合组织, 以她们杰出的学术成就以及显要的社会威望而著称, 包括哈佛大学、耶鲁大学、普林斯顿大学、哥伦比亚大学等）。
词源
with reference to the ivy traditionally growing over the walls of these establishments.