approximatifvsapproximationWhich spelling fits?

Quick tell: approximatif is a adjective, approximation is a noun, so they fill different roles in a sentence.

Which to use

“approximatif” is an adjective and “approximation” is a noun - they look or sound alike but fill different roles in a sentence.

#25,202
“approximatif” frequency rank
#21,851
“approximation” frequency rank
47053
confusion score

Side-by-Side Comparison

Feature approximatif approximation
Definition Qui est fait par approximation. Estimation par à peu près, où l’on se contente d’approcher de la vérité sans s’attacher à une exactitude rigoureuse.

Where the eye mixes approximatif and approximation

Muted = shared; highlighted = the visual trap. They share 11 letters in sequence.

12 ch
approximatif
13 ch
approximation

Visual trap between approximatif and approximation

These two trip readers on the page rather than in the ear: approximatif is \a.pʁɔk.si.ma.tif\ while approximation is \a.pʁɔk.si.ma.sjɔ̃\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 47053, derived from the frequency rank of both members and their visual similarity.

approximatif is recorded at frequency rank #25,202, classified as anadj, pronounced \a.pʁɔk.si.ma.tif\. approximation is at rank #21,851, tagged as anoun, pronounced \a.pʁɔk.si.ma.sjɔ̃\.

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 47053, this pair ranks #190,020 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of approximatif vs approximation

Shared letters: aimoprtx. Private to "approximatif": f. Private to "approximation": n.

"approximatif" · 12 letters · shape VCCCVCVCVCVC  ·  "approximation" · 13 letters · shape VCCCVCVCVCVVC

Known mistypes of this pair

  • approximatifapporximatif · approixmatif · approxiamtif · approximaitf · approximatfi · approximatiff · approximattif · approximmatif
  • approximationapporximation · approixmation · approxiamtion · approximaiton · approximatino · approximationn · approximatoin · approximattion

Frequently Asked Questions

Do "approximatif" and "approximation" mean the same thing in a sentence?
No - they are not even the same part of speech. "approximatif" is an adjective and "approximation" a noun, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "approximatif" vs "approximation" - which ranks higher?
"approximation" is the more common of the two: it sits at frequency rank #21,851 in our French list, against #25,202 for "approximatif". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "approximatif" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "approximation" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #190,020 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "approximatif" and "approximation" also get mixed up with nearby pairs, the highest-scored neighbour is "approximation vs approximations". 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 #190,020 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