Lexicon: Back Vowels

The Back Vowels are [u] [o] [ɔ] [ʊ] [ɑ] and they are produced with the highest point of the tongue towards the back of the mouth. These vowels are also defined by having a low second formant due to the low tongue position in the front of the mouth. These vowels are spacious in the oral cavity and narrow in the throat.