Which to use
“roos” and “roost” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #35,496
- “roos” frequency rank
- #29,070
- “roost” frequency rank
- 64566
- confusion score
Side-by-Side Comparison
| Feature | roos | roost |
|---|---|---|
| Definition | plural of roo | The place where a bird sleeps (usually its nest or a branch). |
Where the eye mixes roos and roost
Muted = shared; highlighted = the visual trap. They share 4 letters in sequence. roos runs 4 letters (CVVC) against roost's 5 (CVVCC) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses roos with roost
A purely visual mix-up. roos (/ɹuːz/) and roost (/ɹuːst/) 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 extra letter(s) - “roos” sits inside “roost”. Our composite confusion score for this pair is 64566, derived from the frequency rank of both members and their visual similarity.
roos is recorded at frequency rank #35,496, classified as anoun, pronounced /ɹuːz/. roost is at rank #29,070, tagged as anoun, pronounced /ɹuːst/.
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 64566, this pair ranks #77,073 of 530,003 scored English confusable pairs - among the most confusable pairs.
Orthographic DNA of roos vs roost
Shared letters: ors. Private to "roos": -. Private to "roost": t.
"roos" · 4 letters · shape CVVC · "roost" · 5 letters · shape CVVCC
Known mistypes of this pair
Frequently Asked Questions
Can "roos" and "roost" be used interchangeably?
Frequency check: "roos" vs "roost" - 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 "roos" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "roost" - compare definitions side by side with the headword page. Word entry
- This pair ranks #77,073 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "roos" and "roost" also get mixed up with nearby pairs, the highest-scored neighbour is "rooks vs roos". 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 #77,073 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.