Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Functions (hierarchy name)
4. functions (activities)
5. [functions by general context]
6. communication functions
7. signaling

Anotations

Scope note:

The function or method of signalling using flags to convey a code or using an apparatus, such as flag-like devices mounted on a tower. Semaphore conveys messages by a code whereby the arms are placed successively in certain positions in a vertical plane relative to the body, often with a flag in each hand.