laisservslaisseraiTell them apart

Which to use

“laisser” and “laisserai” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#583
“laisser” frequency rank
#18,521
“laisserai” frequency rank
19104
confusion score

Side-by-Side Comparison

Feature laisser laisserai
Definition Quitter quelqu’un ou quelque chose. Première personne du singulier du futur de laisser.

Where the eye mixes laisser and laisserai

Muted = shared; highlighted = the visual trap. They share 7 letters in sequence. laisser runs 7 letters (CVVCCVC) against laisserai's 9 (CVVCCVCVV) - the length gap alone is often enough to separate them once you know to check it.

7 ch
laisser
9 ch
laisserai

Look-alike desk: laisser vs laisserai

A purely visual mix-up. laisser (\le.se\) and laisserai (\lɛ.sə.ʁe\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “laisser” sits inside “laisserai”. Our composite confusion score for this pair is 19104, derived from the frequency rank of both members and their visual similarity.

laisser is recorded at frequency rank #583, classified as averb, pronounced \le.se\. laisserai is at rank #18,521, tagged as averb, pronounced \lɛ.sə.ʁe\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 19104, this pair ranks #374,995 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of laisser vs laisserai

Shared letters: aeilrs. Private to "laisser": -. Private to "laisserai": -.

"laisser" · 7 letters · shape CVVCCVC  ·  "laisserai" · 9 letters · shape CVVCCVCVV

Known mistypes of this pair

  • laisser ← alisser · laiser · laisesr · laisserr · laissre · lasiser · liasser · llaisser
  • laisserai ← alisserai · laiserai · laisesrai · laisseari · laisseria · laisserrai · laissreai · lasiserai

Frequently Asked Questions

Is swapping "laisser" for "laisserai" ever safe?
No. They are said differently (\le.se\ versus \lɛ.sə.ʁe\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "laisser" or "laisserai" show up more?
"laisser" is the more common of the two: it sits at frequency rank #583 in our French list, against #18,521 for "laisserai". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Useful next steps

Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.

  • Full dictionary entry for "laisser" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "laisserai" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #374,995 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "laisser" and "laisserai" also get mixed up with nearby pairs, the highest-scored neighbour is "laisserai vs laisserez". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #374,995 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list