Is the w in cow a vowel or a consonant?
Assuming it is considered a vowel, would it likewise be so in how?
I learned that the vowels are "a, e, i, o, u, and sometimes y."
If w can be a vowel, what other letters can be vowels?
What is the definition of a vowel?
By the way, I know w can be a vowel, for example in the word cwm, described in the OED as:
A valley; in Physical Geogr., a bowl-shaped hollow partly enclosed by steep walls lying at the head of a valley or on a mountain slope and formed originally by a glacier; a cirque.