raresvsraysWhat's the difference?

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

Which to use

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

#2,099
“rares” frequency rank
#38,501
“rays” frequency rank
40600
confusion score

Side-by-Side Comparison

Feature rares rays
Definition Pluriel de rare. Pluriel de ray.

Where the eye mixes rares and rays

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

5 ch
rares
4 ch
rays

Look-alike desk: rares vs rays

These two trip readers on the page rather than in the ear: rares is \ʁaʁ\ while rays is \ʁɛ\. 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 40600, derived from the frequency rank of both members and their visual similarity.

rares is recorded at frequency rank #2,099, classified as anadj, pronounced \ʁaʁ\. rays is at rank #38,501, tagged as anoun, pronounced \ʁɛ\.

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 40600, this pair ranks #239,325 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of rares vs rays

Shared letters: ars. Private to "rares": e. Private to "rays": y.

"rares" · 5 letters · shape CVCVC  ·  "rays" · 4 letters · shape CVVC

Known mistypes of this pair

  • raresarres · raers · raress · rarres · rarse · rraes · rrares
  • raysarys · rasy · rayss · rayys · rrays · ryas

Frequently Asked Questions

Is swapping "rares" for "rays" ever safe?
No - they are not even the same part of speech. "rares" is an adjective and "rays" a noun, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "rares" or "rays"?
"rares" is the more common of the two: it sits at frequency rank #2,099 in our French list, against #38,501 for "rays". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

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

  • Full dictionary entry for "rares" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rays" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #239,325 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "rares" and "rays" also get mixed up with nearby pairs, the highest-scored neighbour is "rays vs roya". 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 #239,325 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