title: 4Y
text: # 4Y
  
  4Y or 4-Y may refer to:
  
  * 4 years
  * 4Y, IATA code for Eurowings Discover and Airbus Transport International (controlled duplicate)
  * 4Y, a series of models of Toyota Y engine
  * 4Y, the production code for the 1978 Doctor Who serial Underworld
  