Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Thai alphabet is used to write the Thai language and other minority languages in Thailand. It has forty-four consonants, fifteen vowel symbols that combine into at least twenty-eight vowel forms, and four tone marks. The character set is an abugida, a writing system in which each consonant may invoke an inherent vowel sound, described as an implied ''a'' or ''o''. Consonants are written horizontally from left to right, with vowels symbols arranged above, below, to the left or to the right of the corresponding consonant or in a combination of those positions.