macsvsmucusTell them apart

Which to use

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

#27,549
“macs” frequency rank
#23,915
“mucus” frequency rank
51464
confusion score

Side-by-Side Comparison

Feature macs mucus
Definition plural of mac A slippery secretion from the lining of the mucous membranes.

Where the eye mixes macs and mucus

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. macs runs 4 letters (CVCC) against mucus's 5 (CVCVC) - the length gap alone is often enough to separate them once you know to check it.

4 ch
macs
5 ch
mucus

Visual trap between macs and mucus

A purely visual mix-up. macs (/mæks/) and mucus (/ˈmjuːkəs/) 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 51464, derived from the frequency rank of both members and their visual similarity.

macs is recorded at frequency rank #27,549, classified as anoun, pronounced /mæks/. mucus is at rank #23,915, tagged as anoun, pronounced /ˈmjuːkəs/.

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 51464, this pair ranks #165,252 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of macs vs mucus

Shared letters: cms. Private to "macs": a. Private to "mucus": u.

"macs" · 4 letters · shape CVCC  ·  "mucus" · 5 letters · shape CVCVC

Known mistypes of this pair

  • macs ← amcs · maccs · macss · masc · mcas · mmacs
  • mucus ← mcuus · mmucus · muccus · mucsu · mucuss · muucs · umcus

Frequently Asked Questions

Can "macs" and "mucus" be used interchangeably?
No. They are said differently (/mæks/ versus /ˈmjuːkəs/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "macs" vs "mucus" - which ranks higher?
"mucus" is the more common of the two: it sits at frequency rank #23,915 in our English list, against #27,549 for "macs". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

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

  • Full dictionary entry for "macs" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "mucus" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #165,252 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "macs" and "mucus" also get mixed up with nearby pairs, the highest-scored neighbour is "macs vs MGS". 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 #165,252 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