This article contains phonetic transcriptions in the International Phonetic Alphabet (IPA). For an introductory guide on IPA symbols, see Help:IPA. For the distinction between [ ], / / and ⟨ ⟩, see IPA § Brackets and transcription delimiters. A vowel is a syllabic speech sound pronounced without any stricture in the vocal tract.[1] Vowels are one of the two principal classes of speech sounds, the
![Vowel - Wikipedia](https://cdn-ak-scissors.b.st-hatena.com/image/square/52bf3899d6041cc202db4001f97fc8d4d1471dfa/height=288;version=1;width=512/https%3A%2F%2Fupload.wikimedia.org%2Fwikipedia%2Fcommons%2Fthumb%2F4%2F4f%2FBlank_vowel_trapezoid.svg%2F1200px-Blank_vowel_trapezoid.svg.png)