A redoubt is a fort or fort system usually consisting of an enclosed defensive emplacement outside a larger fort, usually relying on earthworks, though others are constructed of stone or brick.
Look up innuendo in Wiktionary, the free dictionary. An innuendo is an hint, insinuation or intimation about a person or thing, especially of a denigrating or a derogatory nature. It can also be a remark or question, typically disparaging (also called insinuation), that works obliquely by allusion.
Irony is the use of words to convey the opposite of their literal meaning. Similarly, irony may be a statement or situation where the meaning is contradicted by the appearance or presentation of the idea. Adjective: ironic or ironical. Also known as eironeia, illusio, and the dry mock.