It's pronounced [wag-uhn]

A wagon is a heavy four-wheeled vehicle pulled by draught animals (or Mommies) and is used for transporting goods, agricultural materials or sometimes people (like babies). Wagons are distinguished from carts, which have two wheels, and from lighter four-wheeled vehicles for carrying people, such as carriages. A wagon may be pulled by one animal or by several, often in pairs (Daddy came too).

Raegan and Sofia August 2010
11 months