【How-to】Are camels dangerous - Howto.org

Words with no vowels. Cwm and crwth do not contain the letters a, e, i, o, u, or y, the usual vowels (that is, the usual symbols that stand for vowel sounds) in English. … Shh, psst, and hmm do not have vowels, either vowel symbols or vowel sounds. There is some controversy whether they are in fact “words,” however.