We don't have synonyms for ha'nt yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are haunt, haint and harnt.
(n) :
(US, especially Southern US) Alternative form of haunt, haint (“ghost”) [A place at which one is regularly found; a habitation or hangout.]
(v) :
(US, especially Southern US) Alternative form of haunt, haint [(transitive) To inhabit or to visit frequently (most often used in reference to ghosts).]
(n) :
(US, especially Southern US) Alternative form of haunt, haint (“ghost”) [A place at which one is regularly found; a habitation or hangout.]
(v) :
(US, especially Southern US) Alternative form of haunt, haint [(transitive) To inhabit or to visit frequently (most often used in reference to ghosts).]