'Narthex' definitions:

Definition of 'narthex'

(from WordNet)
noun
Portico at the west end of an early Christian basilica or church
noun
A vestibule leading to the nave of a church

Definition of 'Narthex'

From: GCIDE
  • Narthex \Nar"thex\, n. [L., giant fennel, Gr. na`rqhx.]
  • 1. (Bot.) A tall umbelliferous plant (Ferula communis). See Giant fennel, under Fennel. [1913 Webster]
  • 2. (Arch.) 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. [1913 Webster]