dreadnought：（20世纪初期）无畏舰

dread, 恐惧。nought, 零，没有。用于战舰名。

• rarefied
• rarefy
• rarely
• raring
• rarity
• rascal
• rase
• rash
• rasher
• rasp
• raspberry
• raspy
• raster
• rasterize
• rat
• ratatouille
• ratbag
• ratchet
• rate
• ratepayer
• rathe
• rather
• ratify
• rating
• ratio