We don't have synonyms for pharo yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are phare, phago and phar.
(n) :
Obsolete form of faro (card game). [(card games) A game of chance played by betting on the order in which certain cards will appear when taken singly from the top of the pack.]
(n) :
Obsolete form of faro (card game). [(card games) A game of chance played by betting on the order in which certain cards will appear when taken singly from the top of the pack.]