cotvscystTell them apart

Which to use

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

#22,045
“cot” frequency rank
#24,720
“cyst” frequency rank
46765
confusion score

Side-by-Side Comparison

Feature cot cyst
Definition A simple bed, especially one for portable or temporary purposes. A pouch or sac without opening, usually membranous and containing morbid matter, which develops in one of the natural cavities or in the substance of an organ.

Where the eye mixes cot and cyst

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

3 ch
cot
4 ch
cyst

Why the eye confuses cot with cyst

A purely visual mix-up. cot (/kɒt/) and cyst (/sɪst/) 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 46765, derived from the frequency rank of both members and their visual similarity.

cot is recorded at frequency rank #22,045, classified as anoun, pronounced /kɒt/. cyst is at rank #24,720, tagged as anoun, pronounced /sɪst/.

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 46765, this pair ranks #208,685 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of cot vs cyst

Shared letters: ct. Private to "cot": o. Private to "cyst": sy.

"cot" · 3 letters · shape CVC  ·  "cyst" · 4 letters · shape CVCC

Known mistypes of this pair

  • cystccyst · csyt · cysst · cystt · cyts · cyyst · ycst

Frequently Asked Questions

Can "cot" and "cyst" be used interchangeably?
No. They are said differently (/kɒt/ versus /sɪst/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "cot" or "cyst"?
"cot" is the more common of the two: it sits at frequency rank #22,045 in our English list, against #24,720 for "cyst". 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 "cot" and "cyst" is sorted above. Next: full entries or other pairs that share a letter shape.

  • Full dictionary entry for "cot" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "cyst" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #208,685 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "cot" and "cyst" also get mixed up with nearby pairs, the highest-scored neighbour is "Crist vs cyst". 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 #208,685 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