Source : Webster's Revised Unabridged Dictionary (1913)

Twopence \Two"pence\ (?; 277), n.
   A small coin, and money of account, in England, equivalent to
   two pennies, -- minted to a fixed annual amount, for
   almsgiving by the sovereign on Maundy Thursday.

Source : WordNet®

twopence
     n : a former United Kingdom silver coin; United Kingdom bronze
         decimal coin worth two pennies [syn: {tuppence}]