Tell a word without vowel.
In English, every word must contain at least one spoken vowel in its pronunciation. However, there are a few words that do not contain a vowel letter in their written form. Traditionally, the following five letters have been regarded as vowel letters, because both in English and in most other languages they typically represent vowel sounds: a, e, i, o, u. However, in English, y and w have double roles, as y can sometimes represent a consonant as in yes, and sometimes a vowel, as in fly and w can represent a consonant, as in pillow, and sometimes a vowel, as in cwm (pronounced [kuːm], a basin within a mountain