reovsroosTell them apart

Which to use

“reo” and “roos” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#42,371
“reo” frequency rank
#35,496
“roos” frequency rank
77867
confusion score

Side-by-Side Comparison

Feature reo roos
Definition A reinforcement (additional soldiers). plural of roo

Letter map: reo vs roos

Shared letters muted; letters that set reo and roos apart highlighted. Shared run: 2. reo runs 3 letters (CVV) against roos's 4 (CVVC) - the length gap alone is often enough to separate them once you know to check it.

3 ch
reo
4 ch
roos

Pair insight - reo / roos

reo and roos are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 77867, derived from the frequency rank of both members and their visual similarity.

reo is recorded at frequency rank #42,371, classified as anoun. roos is at rank #35,496, tagged as anoun, pronounced /ɹuːz/.

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 77867, this pair ranks #26,106 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of reo vs roos

Shared letters: or. Private to "reo": e. Private to "roos": s.

"reo" · 3 letters · shape CVV  ·  "roos" · 4 letters · shape CVVC

Known mistypes of this pair

  • roos ← oros · rooss · roso · rroos

Frequently Asked Questions

Is swapping "reo" for "roos" ever safe?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
Frequency check: "reo" vs "roos" - which ranks higher?
"roos" is the more common of the two: it sits at frequency rank #35,496 in our English list, against #42,371 for "reo". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Done with this confusable. These links stay specific to "reo" and "roos".

  • Full dictionary entry for "reo" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "roos" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #26,106 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "reo" and "roos" also get mixed up with nearby pairs, the highest-scored neighbour is "reo vs Rua". 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 #26,106 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list