datervsdoperWhich spelling fits?

Which to use

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

#17,671
“dater” frequency rank
#41,743
“doper” frequency rank
59414
confusion score

Side-by-Side Comparison

Feature dater doper
Definition Marquer la date de quelque chose. Améliorer des performances en utilisant des produits illicites.

Where the eye mixes dater and doper

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
dater
5 ch
doper

Visual trap between dater and doper

A purely visual mix-up. dater (\da.te\) and doper (\dɔ.pe\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 59414, derived from the frequency rank of both members and their visual similarity.

dater is recorded at frequency rank #17,671, classified as averb, pronounced \da.te\. doper is at rank #41,743, tagged as averb, pronounced \dɔ.pe\.

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 59414, this pair ranks #103,276 of 440,172 scored French confusable pairs - among the most confusable pairs.

Orthographic DNA of dater vs doper

Shared letters: der. Private to "dater": at. Private to "doper": op.

"dater" · 5 letters · shape CVCVC  ·  "doper" · 5 letters · shape CVCVC

Known mistypes of this pair

  • dateradter · daetr · daterr · datre · datter · ddater · dtaer
  • doperddoper · doepr · doperr · dopper · dopre · dpoer · odper

Frequently Asked Questions

Is swapping "dater" for "doper" ever safe?
No. They are said differently (\da.te\ versus \dɔ.pe\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "dater" or "doper" show up more?
"dater" is the more common of the two: it sits at frequency rank #17,671 in our French list, against #41,743 for "doper". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "dater" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "doper" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #103,276 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "dater" and "doper" also get mixed up with nearby pairs, the highest-scored neighbour is "doper vs dour". 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 #103,276 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