We don't have synonyms for chi rho yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are chi-rho.
(N) :
The Chi Rho (☧, English pronunciation ; also known as chrismonFrom a supposed Middle Latin crismon), specifically applied to the "Chrismon of Saint Ambrose" in Milan Cathedral.
(N) :
The Chi Rho (☧, English pronunciation ; also known as chrismonFrom a supposed Middle Latin crismon), specifically applied to the "Chrismon of Saint Ambrose" in Milan Cathedral.