mothsvsmouthsWhich spelling fits?

Which to use

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

#22,157
“moths” frequency rank
#10,891
“mouths” frequency rank
33048
confusion score

Side-by-Side Comparison

Feature moths mouths
Definition plural of moth plural of mouth

Where the eye mixes moths and mouths

Muted = shared; highlighted = the visual trap. They share 5 letters in sequence.

5 ch
moths
6 ch
mouths

Why the eye confuses moths with mouths

A purely visual mix-up. moths (/mɔθs/) and mouths (/maʊðz/) 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 33048, derived from the frequency rank of both members and their visual similarity.

moths is recorded at frequency rank #22,157, classified as anoun, pronounced /mɔθs/. mouths is at rank #10,891, tagged as anoun, pronounced /maʊðz/.

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 33048, this pair ranks #332,690 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of moths vs mouths

Shared letters: hmost. Private to "moths": -. Private to "mouths": u.

"moths" · 5 letters · shape CVCCC  ·  "mouths" · 6 letters · shape CVVCCC

Known mistypes of this pair

  • mothsmmoths · mohts · mothhs · mothss · motsh · motths · mtohs · omths
  • mouthsmmouths · motuhs · mouhts · mouthhs · mouthss · moutsh · moutths · muoths

Frequently Asked Questions

Is swapping "moths" for "mouths" ever safe?
No. They are said differently (/mɔθs/ versus /maʊðz/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary English text, does "moths" or "mouths" show up more?
"mouths" is the more common of the two: it sits at frequency rank #10,891 in our English list, against #22,157 for "moths". 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 "moths" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mouths" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #332,690 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "moths" and "mouths" also get mixed up with nearby pairs, the highest-scored neighbour is "mote vs moths". 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 #332,690 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