rubyvsrungTell them apart

Which to use

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

#7,386
“ruby” frequency rank
#22,497
“rung” frequency rank
29883
confusion score

Side-by-Side Comparison

Feature ruby rung
Definition A clear, deep, red variety of corundum, valued as a precious stone. A crosspiece forming a step of a ladder; a round.

Where the eye mixes ruby and rung

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

4 ch
ruby
4 ch
rung

Visual trap between ruby and rung

A purely visual mix-up. ruby (/ˈɹuː.bi/) and rung (/ɹʌŋ/) 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 29883, 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/. rung is at rank #22,497, tagged as anoun, pronounced /ɹʌŋ/.

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 29883, this pair ranks #359,236 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of ruby vs rung

Shared letters: ru. Private to "ruby": by. Private to "rung": gn.

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

Known mistypes of this pair

  • rubyrbuy · rruby · rubby · rubyy · ruyb · urby
  • rungrnug · rrung · rugn · rungg · runng · urng

Frequently Asked Questions

Can "ruby" and "rung" be used interchangeably?
No. They are said differently (/ˈɹuː.bi/ versus /ɹʌŋ/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "ruby" vs "rung" - which ranks higher?
"ruby" is the more common of the two: it sits at frequency rank #7,386 in our English list, against #22,497 for "rung". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Eye-level mix-up between "ruby" and "rung" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "ruby" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "rung" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #359,236 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "ruby" and "rung" also get mixed up with nearby pairs, the highest-scored neighbour is "Rua vs rung". 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 #359,236 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