Noah Webster's New International Dictionary of the English Language

1. (a.) Outward; pertaining to that which is outside; -- opposed to interior; as, the exterior part of a sphere.

2. (a.) External; on the outside; without the limits of; extrinsic; as, an object exterior to a man, opposed to what is within, or in his mind.

3. (a.) Relating to foreign nations; foreign; as, the exterior relations of a state or kingdom.

4. (n.) The outward surface or part of a thing; that which is external; outside.

5. (n.) Outward or external deportment, form, or ceremony; visible act; as, the exteriors of religion.