3: Vowel Sounds and Spellings Last updated Save as PDF Page ID710 Contributed by CK12CK12 3.1: Overview of Vowel Sounds3.2: The Vowel (a)3.3: The Vowel (e)3.4: The Vowel (i)3.5: The Vowel (o)3.6: Four Long and Short (u) Sounds3.7: Strong and Weak Vowel Sounds3.8: The 'Schwa' Sound3.9: Diphthongs