The word "hances" is a rare term that is not commonly used. It can be spelled in multiple ways, including "hants," "hunts," or "haunts." The correct pronunciation of this word is /ˈhænsɪz/. The "h" is pronounced clearly, followed by a short "a" sound, and the "ns" is pronounced like a "n" and "s" blend. The "es" at the end of the word is pronounced like a "z" sound. Overall, the spelling of "hances" is not straightforward and can be confusing, but it should be pronounced as /ˈhænsɪz/.
The ends of elliptical arches; in a ship, the falls of the fife-rails.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.