Search Result for "iron curtain":
Wordnet 3.0

NOUN (1)

1. an impenetrable barrier to communication or information especially as imposed by rigid censorship and secrecy; used by Winston Churchill in 1946 to describe the demarcation between democratic and communist countries; 



WordNet (r) 3.0 (2006):

iron curtain
    n 1: an impenetrable barrier to communication or information
         especially as imposed by rigid censorship and secrecy; used
         by Winston Churchill in 1946 to describe the demarcation
         between democratic and communist countries