Rim (noun)

1. The outer edge or lip of a circular object, especially a wheel or container.
2. A narrow strip or border surrounding an object.

Origin:

Late middle english: from old norse rammr 'edge, ridge', of germanic origin.

Examples:

1. The tire hit a pothole and bent the rim.
2. She filled the glass to the rim with water.
3. The picture frame had a golden rim.
4. The rim of the volcano was smoking.
5. The ocean crashed against the rocky rim of the cliff.