jackvsjarConfusable pair

Which to use

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

#2,782
“jack” frequency rank
#35,564
“jar” frequency rank
38346
confusion score

Side-by-Side Comparison

Feature jack jar
Definition Prise, fiche mâle. Banc de gros graviers et de sable, amoncellements, pouvant remodeler le lit du fleuve d’une année sur l’autre, et utilisés pour l’empierrement des chaussées, la confection de béton.

Where the eye mixes jack and jar

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

4 ch
jack
3 ch
jar

Visual trap between jack and jar

A purely visual mix-up. jack (\dʒak\) and jar (\ʒaʁ\) 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 38346, derived from the frequency rank of both members and their visual similarity.

jack is recorded at frequency rank #2,782, classified as anoun, pronounced \dʒak\. jar is at rank #35,564, tagged as anoun, pronounced \ʒaʁ\.

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 38346, this pair ranks #255,873 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of jack vs jar

Shared letters: aj. Private to "jack": ck. Private to "jar": r.

"jack" · 4 letters · shape CVCC  ·  "jar" · 3 letters · shape CVC

Known mistypes of this pair

  • jackajck · jacck · jackk · jakc · jcak · jjack

Frequently Asked Questions

Can "jack" and "jar" be used interchangeably?
No. They are said differently (\dʒak\ versus \ʒaʁ\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "jack" vs "jar" - which ranks higher?
"jack" is the more common of the two: it sits at frequency rank #2,782 in our French list, against #35,564 for "jar". 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 "jack" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "jar" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #255,873 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "jack" and "jar" also get mixed up with nearby pairs, the highest-scored neighbour is "jar vs jor". 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 #255,873 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