roivsrosTell them apart

Quick tell: roi is a noun, ros is an adjective, so they fill different roles in a sentence.

Which to use

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

#29,760
“roi” frequency rank
#40,800
“ros” frequency rank
70560
confusion score

Side-by-Side Comparison

Feature roi ros
Definition König blond

Letter map: roi vs ros

Shared letters muted; letters that set roi and ros apart highlighted. Shared run: 2.

3 ch
roi
3 ch
ros

Role in the sentence - roi and ros

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: roi is anoun and rosanadjective. On the page they differ by a single letter - i in “roi” becomes s in “ros”. Our composite confusion score for this pair is 70560, derived from the frequency rank of both members and their visual similarity.

roi is recorded at frequency rank #29,760, classified as anoun, pronounced […]. ros is at rank #40,800, tagged as anadj, pronounced [ros].

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 70560, this pair ranks #442,660 of 2,006,359 scored German confusable pairs - among the most confusable pairs.

Orthographic DNA of roi vs ros

Shared letters: or. Private to "roi": i. Private to "ros": s.

"roi" · 3 letters · shape CVV  ·  "ros" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "roi" for "ros" ever safe?
No - they are not even the same part of speech. "roi" is a noun and "ros" an adjective, so a sentence built for one is usually ungrammatical with the other.
Frequency check: "roi" vs "ros" - which ranks higher?
"roi" is the more common of the two: it sits at frequency rank #29,760 in our German list, against #40,800 for "ros". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "roi" vs "ros" is on the table, pick a follow-up below.

  • Full dictionary entry for "roi" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ros" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #442,660 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "roi" and "ros" also get mixed up with nearby pairs, the highest-scored neighbour is "ros vs RUB". Nearby pair

Confusion rank #442,660 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list