Warship type (7)
(Other definitions for destroyer that I've seen before include "likely to break down" , "Red oyster (anag)" , "Butcher'" , "Apollyon maybe" , "Wrecker" .)
(Other definitions for frigate that I've seen before include "Naval escort vessel" , "Warship; -- bird" , "Warship - seabird" , "US warship" , "Light warship" .)
(Other definitions for cruiser that I've seen before include "Pleasure craft" , "Warship - pleasure boat - boxing weight" , "Type of warship" , "Speedy warship" , "Old warship" .)