nave

n. center of church; place of seating in a church; center of a wheel

In Romanesque and Gothic Christian abbey, cathedral basilica and church architecture, the nave is the central approach to the high altar. "Nave" ( Medieval Latin navis, "ship,") was probably suggested by the keel shape of its vaulting. The nave of a church, whether Romanesque, Gothic or Classical, extends from the entry — which may have a separate vestibule, the narthex — to the and is flanked by lower aisles separated from the nave by an arcade. If the aisles are high and of a width comparable to the central nave, the structure is sometimes said to have three naves.
See more at Wikipedia.org...

Noun
1. the central area of a church
(hypernym) area
(part-holonym) church, church building

n. ship, vessel, boat; freighter, cargo ship; craft

n. nave; ship, large vessel made for sailing on the sea; spacecraft; auditorium