I. noun
also dreadnaught ˈ ̷ ̷ˌ ̷ ̷
( -s )
1. : fearnought 1
2.
[from Dreadnought, British battleship finished 1907, the first of this type]
: a battleship of the 20th century that has its main armament entirely of big guns all of one caliber
II. noun
: one that is among the largest or most powerful of its kind