rulesvsrunsTell them apart

Which to use

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

#932
“rules” frequency rank
#1,535
“runs” frequency rank
2467
confusion score

Side-by-Side Comparison

Feature rules runs
Definition plural of rule plural of run

Where the eye mixes rules and runs

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence.

5 ch
rules
4 ch
runs

Look-alike desk: rules vs runs

A purely visual mix-up. rules (/ˈɹuːlz/) and runs (/ɹʌnz/) 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 letter(s) in length. Our composite confusion score for this pair is 2467, derived from the frequency rank of both members and their visual similarity.

rules is recorded at frequency rank #932, classified as anoun, pronounced /ˈɹuːlz/. runs is at rank #1,535, tagged as anoun, pronounced /ɹʌnz/.

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 2467, this pair ranks #524,905 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of rules vs runs

Shared letters: rsu. Private to "rules": el. Private to "runs": n.

"rules" · 5 letters · shape CVCVC  ·  "runs" · 4 letters · shape CVCC

Known mistypes of this pair

  • rulesrlues · rrules · ruels · ruless · rulles · rulse · urles
  • runsrnus · rruns · runns · runss · rusn · urns

Frequently Asked Questions

Is swapping "rules" for "runs" ever safe?
No. They are said differently (/ˈɹuːlz/ versus /ɹʌnz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "rules" or "runs"?
"rules" is the more common of the two: it sits at frequency rank #932 in our English list, against #1,535 for "runs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "rules" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "runs" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #524,905 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "rules" and "runs" also get mixed up with nearby pairs, the highest-scored neighbour is "Rua vs runs". 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 #524,905 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