immovsIRMConfusable pair

Which to use

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

#23,578
“immo” frequency rank
#17,979
“IRM” frequency rank
41557
confusion score

Side-by-Side Comparison

Feature immo IRM
Definition Abréviation de immobilisation. Technique d’imagerie médicale permettant l’analyse fine du corps humain par l’action d’un champ magnétique et d’ondes radio.

Where the eye mixes immo and IRM

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
immo
3 ch
IRM

Why the eye confuses immo with IRM

A purely visual mix-up. immo (\i.mo\) and IRM (\i.ɛ.ʁɛm\) 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 1 letter(s) in length. Our composite confusion score for this pair is 41557, derived from the frequency rank of both members and their visual similarity.

immo is recorded at frequency rank #23,578, classified as anoun, pronounced \i.mo\. IRM is at rank #17,979, tagged as anoun, pronounced \i.ɛ.ʁɛm\.

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 41557, this pair ranks #232,242 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of immo vs IRM

Shared letters: im. Private to "immo": o. Private to "IRM": r.

"immo" · 4 letters · shape VCCV  ·  "IRM" · 3 letters · shape VCC

Known mistypes of this pair

  • immoimo · imom · mimo

Frequently Asked Questions

Is swapping "immo" for "IRM" ever safe?
No. They are said differently (\i.mo\ versus \i.ɛ.ʁɛm\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "immo" or "IRM" show up more?
"IRM" is the more common of the two: it sits at frequency rank #17,979 in our French list, against #23,578 for "immo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

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

  • Full dictionary entry for "immo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "IRM" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #232,242 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "immo" and "IRM" also get mixed up with nearby pairs, the highest-scored neighbour is "ime vs immo". 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 #232,242 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