Phonetically, a vowel is a sound that can be produced without a complete closure of the mouth (or cause friction). There are six different ways you can classify vowels phonetically:
- The rounding of the lips,
- The frontness or backness of the tongue body
- The height of the tongue body.
- The tenseness (see also Advanced Tongue Root (definition)) of the gesture.
- Vowels can be nasal
- Vowels can also be long or short
- Interactive IPA Charts
The link below takes you away from the Gaelic Wiki to Wikipedia. Since wikipedia pages can be edited by anyone, they often contain inaccurate information. So be careful!
- Crystal, David. (1997) A Dictionary of Linguistics and Phonetics. Oxford, UK: Blackwell.
- Ladefoged, Peter (1993) A Course in Phonetics Third Edition. London: Harcourt Press.
- Matthews, P. H. (1997) The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.