Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]
6. [joints and joint components]
7. joint components

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Components
4. components
5. components by specific context
6. architectural elements
7. openings and opening components
8. openings
9. openings by form

Anotations

Scope note:

Cavities or openings in wood or other material that is meant to receive a corresponding component, or "tenon," that, connected, forms a joint. In architecture, to refer to the complete joint so formed, use "mortise-and-tenon joints."