We don't have synonyms for pennie yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are bennie, hennie and penni.
(n) :
Obsolete form of penny. [(historical) In the United Kingdom and Ireland and many other countries, a unit of currency worth ¹⁄₂₄₀ of a pound sterling or Irish pound before decimalisation, or a copper coin worth this amount. Abbreviation: d.]
(n) :
Obsolete form of penny. [(historical) In the United Kingdom and Ireland and many other countries, a unit of currency worth ¹⁄₂₄₀ of a pound sterling or Irish pound before decimalisation, or a copper coin worth this amount. Abbreviation: d.]