We don't have synonyms for slavi yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are slave, Slav and slavs.
(n) :
The Russian Orthodox Christmas, which is celebrated from January 6 through 13 in outstate Alaska, USA, wherever there is a sizable Russian Orthodox population.
(n) :
The Russian Orthodox Christmas, which is celebrated from January 6 through 13 in outstate Alaska, USA, wherever there is a sizable Russian Orthodox population.