rubyvsruckWhich spelling fits?

Which to use

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

#7,386
“ruby” frequency rank
#39,069
“ruck” frequency rank
46455
confusion score

Side-by-Side Comparison

Feature ruby ruck
Definition A clear, deep, red variety of corundum, valued as a precious stone. A throng or crowd of people or things; a mass, a pack.

Where the eye mixes ruby and ruck

Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.

4 ch
ruby
4 ch
ruck

Visual trap between ruby and ruck

A purely visual mix-up. ruby (/ˈɹuː.bi/) and ruck (/ɹʌk/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 46455, derived from the frequency rank of both members and their visual similarity.

ruby is recorded at frequency rank #7,386, classified as anoun, pronounced /ˈɹuː.bi/. ruck is at rank #39,069, tagged as anoun, pronounced /ɹʌk/.

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 46455, this pair ranks #211,562 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ruby vs ruck

Shared letters: ru. Private to "ruby": by. Private to "ruck": ck.

"ruby" · 4 letters · shape CVCV  ·  "ruck" · 4 letters · shape CVCC

Known mistypes of this pair

  • rubyrbuy · rruby · rubby · rubyy · ruyb · urby
  • ruckrcuk · rruck · rucck · ruckk · rukc · urck

Frequently Asked Questions

Do "ruby" and "ruck" mean the same thing in a sentence?
No. They are said differently (/ˈɹuː.bi/ versus /ɹʌk/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "ruby" or "ruck"?
"ruby" is the more common of the two: it sits at frequency rank #7,386 in our English list, against #39,069 for "ruck". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

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 "ruby" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ruck" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #211,562 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ruby" and "ruck" also get mixed up with nearby pairs, the highest-scored neighbour is "Rua vs ruck". 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 #211,562 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