Definitions for "Narthex"
The portico in front of ancient churches; sometimes, the atrium or outer court surrounded by ambulatories; -- used, generally, for any vestibule, lobby, or outer porch, leading to the nave of a church.
Entrance hall of a church building.
a single storey porch or room leading into the main body of a church
A tall umbelliferous plant (Ferula communis). See Giant fennel, under Fennel.