We don't have synonyms for arraignments yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are arraignment and arrangements.
(n) :
(law) The formal charging of a defendant with an offense; in many jurisdictions it includes their response in the form of a plea, typically as guilty, not guilty, or no contest.
(n) :
(law) The formal charging of a defendant with an offense; in many jurisdictions it includes their response in the form of a plea, typically as guilty, not guilty, or no contest.