Definitions for l'enfantlɑ̃ˈfɑ̃
Random House Webster's College Dictionary
Pierre Charles, 1754–1825, U.S. engineer and architect, born in France: designer of Washington, D.C.
L'Enfant, Charles L'Enfant, Pierre Charles L'Enfant(noun)
United States architect (born in France) who laid out the city plan for Washington (1754-1825)