dreadnought

noun8

1. •
   (historical) A battleship, especially of the World War I era, in which most of the firepower is concentrated in large guns that are of the same caliber.
2. •
   (informal, historical) Any type of warship heavier in armour or armament than a typical battleship.
3. •
   One that is the largest or the most powerful of its kind.

   • Herbert steering the dreadnought limousine through the night, black cap on his black head. — 1963
4. •
   A type of acoustic guitar with a very large body and a waist that is less pronounced than on other guitar shapes, producing a deep, bold sound.
5. •
   A garment made of thick woollen cloth that can defend against storm and cold.

   • "Much obliged to you, ma'am!" says Mr. Guppy, divesting himself of his wet dreadnought in the hall. — 1853
6. •
   One that fears nothing.

   • “Lift up your head and your heart, O King. We must follow after this dreadnought, hard on her tracks.” — 1961
7. •
   The cloth itself; fearnaught.
8. •
   Something that assures against fear.