Nasal vowels are one of the most distinctive features of French. They are sounds that do not quite exist in English, which makes them feel mysterious at first. But they follow clear patterns, and once you recognize them in words you already know, they become much easier to produce.
What is a nasal vowel?
A nasal vowel is pronounced partly through your nose. Air passes through both your mouth and nasal passage at the same time. In French, when a vowel is followed by n or m and then another consonant (or at the end of a word), the vowel usually becomes nasal and the n or m is not pronounced separately.
The four nasal sounds
1. AN / EN — like “ahn”
This is the most common nasal vowel. It sounds like “ah” but pushed slightly through the nose.
- manger, grand, enfant, France, entrer, dans, blanc, centre
2. ON — like “ohn”
Round your lips as if saying “oh” and add nasal resonance.
- bon, monde, long, son, fond,onton, repondre
3. IN / AIN / EIN — like “an” in “ban” but nasal
This sound is produced further forward in the mouth.
- fin, pain, main, bien, train, vin, plein
4. UN — like a rounded nasal “uh”
In modern spoken French, many speakers merge this with the IN sound. Still worth knowing for reading.
- un, lundi, brun, chacun
When does nasalization NOT happen?
When the n or m is followed by a vowel, the vowel is NOT nasal.
- bonne = the on is not nasal because a second n is followed by e
- ami = not nasal
- année = not nasal
Practice words
- AN: an, maman, manteau, rang
- ON: on, non, maison, bonjour
- IN: in, vin, demain, jardin
- UN: un, lundi, parfum
Final tip
The best way to train nasal vowels is through listening. Find a short French audio clip and listen specifically for these four sounds. Then repeat out loud. Your ear will guide your mouth more effectively than any written description.

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