High (sound)
High is a feature which characterizes sounds that are produced by raising the tongue body from its neutral position.
Example
the vowels [i] and [u] differ from [a], in that the former two are specified as [+high] and the latter as [-high].
Link
Utrecht Lexicon of Linguistics
References
- Chomsky, N. and M. Halle 1968. The Sound Pattern of English, Harper and Row, New York.