1 hist. a gold twenty-franc piece minted in the reign of Napoleon I.
2 hist. a 19th-c. high boot.
3 = NAP(3).
4 US = MILLEFEUILLE.
Phrases and idioms:
double napoleon hist. a forty-franc piece.
Etymology: F napoleacuteon f. Napoleacuteon, name of 19th-c. French emperors
Useful english dictionary. 2012.