Battlewagons are a term used for massive military vehicles, particularly ships from the early 20th century. There are several synonyms for battlewagons, including dreadnoughts, ironclads, battleships, cruisers, and destroyers. Dreadnoughts were the first type of battleships, characterized by their heavily armored hulls and large caliber guns. Ironclads were used during the American Civil War and were armored with iron plates. Battleships were the most dominant warships in the early 20th century, with heavy armor and battleship guns. Cruisers were faster and more maneuverable ships designed for scouting and raiding, while destroyers were smaller, faster ships used for escorting convoys and protecting larger ships. These synonyms provide a vivid image of the size and power of these war machines.