We don't have synonyms for orant yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are grant, rant and orang.
(n) :
Alternative form of orans. [(art, Christianity) A figure in an attitude of prayer, usually standing, with the elbows close to the sides of the body and with the hands outstretched sideways, palms up.]
(n) :
Alternative form of orans. [(art, Christianity) A figure in an attitude of prayer, usually standing, with the elbows close to the sides of the body and with the hands outstretched sideways, palms up.]