nave

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. The central part of a church, extending from the narthex to the chancel and flanked by aisles.
2. n. The hub of a wheel.

Century Dictionary and Cyclopedia

1. n. The central part of a wheel, in which the spokes are inserted; the hub. See cuts under felly and hub.
2. n. The navel.
3. n. The main body, or middle part, lengthwise, of a church, extending typically from the chief entrance to the choir or chancel. In all but very small churches it is usual for the nave to be flanked by one or more aisles on each side, the aisles being, unless exceptionally, or typically in some local architectural styles, much lower and narrower than the nave. See aisle, and diagrams under cathedral, basilica, and bema.
4. To form as a nave; cause to resemble a nave in function or in effect.
5. A Middle English contraction of ne have, have not.

Wiktionary

1. n. architecture The middle or body of a church, extending from the transepts to the principal entrances.
2. n. A hub of a wheel.

GNU Webster's 1913

1. n. The block in the center of a wheel, from which the spokes radiate, and through which the axle passes; -- called also hub or hob.
2. n. obsolete The navel.
3. n. (Arch.) The middle or body of a church, extending from the transepts to the principal entrances, or, if there are no transepts, from the choir to the principal entrance, but not including the aisles.

WordNet 3.0

1. n. the central area of a church