From The Collaborative International Dictionary of English v.0.48 :
Academe \Ac`a*deme"\, n. [L. academia. See Academy.]
An academy. [Poetic] --Shak.
[1913 Webster]
From WordNet (r) 3.0 (2006) :
academe
n 1: the academic world [syn: academia, academe]
From The Devil's Dictionary (1881-1906) :
ACADEME, n. An ancient school where morality and philosophy were taught.