This deep dive covers The Three Nasal Vowel Sounds within Nasal vowels: an, en, on, in for GCSE French. Revise Nasal vowels: an, en, on, in in Phonics: French Sounds and Spellings for GCSE French with 10 exam-style questions and 15 flashcards. This topic shows up very often in GCSE exams, so students should be able to explain it clearly, not just recognise the term. It is section 2 of 4 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.

📖 The Three Nasal Vowel Sounds

French has three nasal vowel sounds that appear in GCSE-level vocabulary. Each is triggered by a vowel followed by n or m (before another consonant or at the end of a word).

Written form	IPA	How to produce it	Key examples
an / en / am / em	[ɑ̃]	Like "ong" said from the back of the throat with no final g — mouth open, back of tongue low	un enfant, le temps, manger, grand, prendre
on / om	[ɔ̃]	Lips rounded and pushed forward, nasal resonance — like "on" but breathed through the nose	bon, non, mon, le nom, ils font
in / ain / ein / un / im	[ɛ̃]	A nasal version of the open "e" sound — lips slightly spread, nasalised	cinq, le train, la faim, le vin, un

🛑 The Nasalisation Stop Rule — the most important rule

Nasalisation only happens when n or m is:

At the end of a word, or
Followed by another consonant (not a vowel)

If the n or m is doubled (nn / mm) or followed by a vowel, nasalisation stops and you pronounce both the vowel AND the n/m as a regular consonant.

Nasalised ✓	NOT nasalised ✗	Reason
bon [bɔ̃] — nasal	bonne [bɔn] — not nasal	doubled nn stops nasalisation
an [ɑ̃] — nasal	une année [yn ane] — not nasal	n followed by vowel
le pain [pɛ̃] — nasal	la peine [pɛn] — not nasal	n before vowel e
innocent — first syllable [ɛ̃] nasal	— second syllable [nɔ] not nasal	nn + vowel breaks second nasalisation
un ami — liaison nasal [œ̃]	n links to ami as [n]	liaison: [œ̃ nami] — the nasal + consonant link

Annotated model sentences

Mon enfant prend le train en janvier.

My child takes the train in January.

Mon [mɔ̃] — [ɔ̃] nasal
enfant [ɑ̃fɑ̃] — both syllables are [ɑ̃] nasal
prend [pʁɑ̃] — the en is nasal; final d silent
train [tʁɛ̃] — ain is [ɛ̃] nasal
en [ɑ̃] — nasal; janvier [ʒɑ̃vje] — an nasal, -ier not nasal

Practice questions for Nasal vowels: an, en, on, in

What is the key feature of a nasal vowel in French?

A. The sound is produced partly through the nose, and the 'n' or 'm' is NOT a separate consonant
B. The letter 'n' is always pronounced as a clear consonant after the vowel
C. The vowel is silent and only the 'n' is heard
D. The sound is identical to the English vowel in 'bin' or 'sun'

1 markfoundation

Which statement about the spellings 'an' and 'en' in French is correct?

A. They produce different nasal sounds — 'an' is open, 'en' is closed
B. They produce the same nasal sound, as in 'dans' and 'enfant'
C. 'en' is always silent at the end of a word
D. 'an' produces a nasal sound but 'en' never does

1 markfoundation

Quick recall flashcards

le matin — how is this pronounced?

'ma-TAN' — the 'in' is the tight nasal (same as ain, ein, un). Final -n is part of the nasal, not a separate consonant.

What is a nasal vowel in French?

A vowel sound produced partly through the nose. French has four main nasal vowels, written as: an/am/en/em, on/om, in/im/ain/ein, un/um. The 'n' or 'm' is NOT pronounced as a separate consonant — it just nasalises the vowel.

Les voyelles nasales — Sounds That Buzz Through Your Nose

Key sounds to memorise

The Three Nasal Vowel Sounds