| Tamil Vowels | அ | ஆ | இ | ஈ | உ | ஊ | எ | ஏ | ஐ | ஒ | ஒ | ஔ | ஃ |
| ISO transliteration | a | ā | i | ī | u | ū | e | ē | ai | o | ō | au | aḵ |
| Length | Short | Long | Short | Long | Short | Long | Short | Long | Diphthongs | Short | Long | Diphthongs | Special character |
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