We don't have synonyms for emigrations yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are migration, emigration and remigration.
(n) :
The act of emigrating; movement of a person or persons out of a country or national region, for the purpose of permanent relocation of residence.
(n) :
A body of emigrants; emigrants collectively.
(n) :
The act of emigrating; movement of a person or persons out of a country or national region, for the purpose of permanent relocation of residence.
(n) :
A body of emigrants; emigrants collectively.