Question

I have a one year old cousin. Does this sentence have correct article?
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Answer 1

no it should be an year old cousin

Answer 2

Yes, the sentence has correct article.

• The articles are "a", " an" and "the".
• Although we would get confused that the word " one" starts with a vowel so the article "an" should be used.
• But this sentence is an exception.
• Generally the article "an" in used before words that start with vowels a, e, i, o and u. The article "a" is used in general terms and the article "the" is used for specific things.