We don't have synonyms for dakhma yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are dokhma and dakhla.
(n) :
(Zoroastrianism) Synonym of tower of silence (“a low, cylindrical, open-topped tower where Zoroastrians place the bodies of deceased people to disintegrate from exposure and consumption by carrion birds such as vultures, the remaining bones being kept in an ossuary”).
(n) :
(Zoroastrianism) Synonym of tower of silence (“a low, cylindrical, open-topped tower where Zoroastrians place the bodies of deceased people to disintegrate from exposure and consumption by carrion birds such as vultures, the remaining bones being kept in an ossuary”).