Usage Note
An counts years as units, as in j'ai vingt ans or il y a deux ans, whereas année stresses the year as a span you live through, hence bonne année!. The nasal vowel makes it a homophone of en, so context and number do the disambiguating.
Examples
"Elle a trente ans."
Natural Translation
She's thirty years old.
Literal Translation
She has thirty years.
Related Words
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