rayvsRUBConfusable pair

Quick tell: ray is a noun, RUB is an abbrev, so they fill different roles in a sentence.

Which to use

“ray” is a noun and “RUB” is an abbrev - they look or sound alike but fill different roles in a sentence.

#4,925
“ray” frequency rank
#49,212
“RUB” frequency rank
54137
confusion score

Side-by-Side Comparison

Feature ray RUB
Definition Strahl, der von einer Energiequelle ausgeht internationaler Währungscode für russischer Rubel, die Währung von Russland

Letter map: ray vs RUB

Shared letters muted; letters that set ray and RUB apart highlighted. Shared run: 1.

3 ch
ray
3 ch
RUB

Grammar separator: ray vs RUB

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: ray is anoun and RUBanabbrev. On the page they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 54137, derived from the frequency rank of both members and their visual similarity.

ray is recorded at frequency rank #4,925, classified as anoun, pronounced [ɹeɪ]. RUB is at rank #49,212, tagged as anabbrev.

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 54137, this pair ranks #1,030,637 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ray vs RUB

Shared letters: r. Private to "ray": ay. Private to "RUB": bu.

"ray" · 3 letters · shape CVV  ·  "RUB" · 3 letters · shape CVC

Frequently Asked Questions

Is swapping "ray" for "RUB" ever safe?
No - they are not even the same part of speech. "ray" is a noun and "RUB" an abbrev, so a sentence built for one is usually ungrammatical with the other.
In ordinary German text, does "ray" or "RUB" show up more?
"ray" is the more common of the two: it sits at frequency rank #4,925 in our German list, against #49,212 for "RUB". 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 "ray" and "RUB".

  • Full dictionary entry for "ray" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "RUB" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,030,637 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "ray" and "RUB" also get mixed up with nearby pairs, the highest-scored neighbour is "RSA vs RUB". Nearby pair

Confusion rank #1,030,637 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