We don't have synonyms for fencibles yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are fencible, sencible and fungibles.
(N) :
The (from the word defencible) British regiments raised in the United Kingdom, Isle of Man and in the colonies for defence against the threat of invasion during the Seven Years' War, the American War of Independence, the French Revolutionary Wars, the Napoleonic Wars and the War of 1812 in the late 18th and early 19th centuries.
(N) :
A number of units used fencibles in their title before and during the American Civil War.
(N) :
The (from the word defencible) British regiments raised in the United Kingdom, Isle of Man and in the colonies for defence against the threat of invasion during the Seven Years' War, the American War of Independence, the French Revolutionary Wars, the Napoleonic Wars and the War of 1812 in the late 18th and early 19th centuries.
(N) :
A number of units used fencibles in their title before and during the American Civil War.