Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines (hierarchy name)
4. disciplines (concept)
5. humanities
6. [linguistics and related disciplines]
7. linguistics
8. theoretical linguistics

Additional parents:

1. top of the aat hierarchies
2. Activities Facet
3. Disciplines
4. disciplines
5. science and related disciplines
6. science
7. natural sciences
8. physical sciences
9. physics
10. acoustics

Anotations

Scope note:

Study of the production, transmission, perception, classification, and physical or acoustical properties of speech sounds and how they are organized in language. For the study of the sound patterns and systems of languages, use "phonology."