Enchaînement & rhythm

Summary

Enchaînement re-syllabifies an already-pronounced final consonant onto the following word's vowel, unlike liaison, which revives a normally silent one; together with syllable-timed rhythm, it gives French its seamless, gapless flow.

Explanation

Enchaînement ("chaining") is the process by which a consonant sound that is already pronounced at the end of a word — one that is not silent in isolation — glides onto the vowel that begins the next word, so the syllable boundary shifts. une amie is not said as two separate blocks une + amie but re-syllabified as u.n‿a.mie /y.na.mi/; il a becomes i.la /i.la/; sept heures becomes sè.t‿heures /sɛ.tœʁ/. In each case the final consonant was going to be pronounced anyway; enchaînement simply moves it to open the next syllable.

This is easy to confuse with liaison, but the two are distinct. Liaison resurrects a consonant that is normally silent when the word stands alone or is followed by a consonant: les amis is pronounced /le.za.mi/, with a /z/ sound that is completely absent in les by itself or in les femmes. Enchaînement, by contrast, involves a consonant that was always going to be heard — the final consonant of amie, a, or sept is pronounced whether or not the next word starts with a vowel; enchaînement only decides which syllable it belongs to. Liaison is optional or forbidden in many contexts and governed by grammatical rules; enchaînement happens automatically wherever a pronounced final consonant meets a following vowel, with no such rule system to learn.

Vowels can chain too, in a related but separate phenomenon sometimes called enchaînement vocalique: when one word ends in a vowel and the next begins with one, French runs them together without a glottal stop, as in il a été, said as a smooth /i.la.e.te/ rather than with a hard break between a and été. English speakers often insert a small glottal catch between vowels; French does not.

The reason all this matters for how French sounds is syllabification: French strongly prefers open syllables, ones that end in a vowel (CV — consonant-vowel), rather than syllables that end in a consonant. Enchaînement and liaison are both, at bottom, the language reshuffling consonants across word boundaries so that syllables can open onto the next vowel. This is why spoken French feels like a continuous ribbon of sound rather than a row of separate words — the syllable, not the word, is the unit that organizes pronunciation.

Word boundaries are also not signaled by stress the way they often are in English. French stress is not lexical — no French word has a fixed stress syllable memorized in the dictionary — and instead falls predictably on the last syllable of a rhythmic group (a phrase-like chunk of meaning), not on individual words. Combined with the fact that French is syllable-timed rather than stress-timed (each syllable takes roughly the same amount of time, unlike English, where stressed syllables are longer and unstressed ones are compressed), the result is speech where you cannot rely on stress or pauses to tell where one word ends and the next begins.

The practical consequence for learners: stop trying to pronounce French word by word with gaps in between, and instead think in breath groups — phrases said as one continuous unit, with enchaînement and liaison smoothing every internal boundary and stress landing only once, at the very end of the group. This is also why listening comprehension is hard at first: the sounds you are taught to associate with individual written words rarely appear cleanly separated in real speech.

Examples

une amie — a (female) friend (Enchaînement: /y.na.mi/ — the already-pronounced n of une shifts onto amie.)

il a — he has (Enchaînement: /i.la/ — the l of il, always pronounced, re-syllabifies onto a.)

sept heures — seven o'clock (Enchaînement: /sɛ.tœʁ/ — the t of sept, normally pronounced, chains onto heures.)

il a été content — he was happy (Vowel enchaînement: /i.la.e.te.kɔ̃.tɑ̃/, no glottal stop between the vowels of a and été.)

les amis — the friends (Contrast with liaison: the /z/ here is a normally silent letter revived, not an already-pronounced consonant — see pronunciation.liaison.)

Elle a une idée intéressante. — She has an interesting idea. (Whole phrase said as one breath group with enchaînement smoothing every word boundary: /ɛ.la.y.ni.de.ɛ̃.te.ʁe.sɑ̃t/.)

Common mistakes

Prerequisites

• Liaison

Related rules

• Liaison
• Élision (le → l', je → j')
• Silent letters