Which to use
“perd” is a verb and “period” is a noun - they look or sound alike but fill different roles in a sentence.
- #1,928
- “perd” frequency rank
- #44,088
- “period” frequency rank
- 46016
- confusion score
Side-by-Side Comparison
| Feature | perd | period |
|---|---|---|
| Definition | Troisième personne du singulier de l’indicatif présent de perdre. | Période. |
Where the eye mixes perd and period
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence.
Look-alike desk: perd vs period
These two trip readers on the page rather than in the ear: perd is \pɛʁ\ while period is ['pɪərɪəd]. Spoken aloud the problem disappears. In writing it persists, because they differ by 2 letter(s) in length, and the parts of speech differ too (verb vs noun), which is usually the fastest check. Our composite confusion score for this pair is 46016, derived from the frequency rank of both members and their visual similarity.
perd is recorded at frequency rank #1,928, classified as averb, pronounced \pɛʁ\. period is at rank #44,088, tagged as anoun, pronounced ['pɪərɪəd].
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 46016, this pair ranks #198,271 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of perd vs period
Shared letters: depr. Private to "perd": -. Private to "period": io.
"perd" · 4 letters · shape CVCC · "period" · 6 letters · shape CVCVVC
Known mistypes of this pair
Frequently Asked Questions
Can "perd" and "period" be used interchangeably?
Frequency check: "perd" vs "period" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "perd" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "period" - compare definitions side by side with the headword page. Word entry
- This pair ranks #198,271 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "perd" and "period" also get mixed up with nearby pairs, the highest-scored neighbour is "period vs pernod". 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 #198,271 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.