cindervscoderWhich spelling fits?

Which to use

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

#30,365
“cinder” frequency rank
#42,066
“coder” frequency rank
72431
confusion score

Side-by-Side Comparison

Feature cinder coder
Definition Partially or mostly burnt material that results from incomplete combustion of coal or wood etc.; it often rides the rising smoke column into the air, and it can pose a fire hazard when it lands, in dry conditions. A device that generates a code, often as a series of pulses.

Letter map: cinder vs coder

Shared letters muted; letters that set cinder and coder apart highlighted. Shared run: 4.

6 ch
cinder
5 ch
coder

Corpus notes: cinder and coder

cinder and coder are indexed as a confusable English pair. We have no recorded pronunciation or part of speech for both members, so the spelling overlap is what we can show you: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 72431, derived from the frequency rank of both members and their visual similarity.

cinder is recorded at frequency rank #30,365, classified as anoun, pronounced /ˈsɪndɚ/. coder is at rank #42,066, tagged as anoun.

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 72431, this pair ranks #43,065 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of cinder vs coder

Shared letters: cder. Private to "cinder": in. Private to "coder": o.

"cinder" · 6 letters · shape CVCCVC  ·  "coder" · 5 letters · shape CVCVC

Known mistypes of this pair

  • cinderccinder · cidner · cindder · cinderr · cindre · cinedr · cinnder · cnider
  • coderccoder · cdoer · codder · coderr · codre · coedr · ocder

Frequently Asked Questions

Is swapping "cinder" for "coder" ever safe?
No. They differ by 1 letter(s) in length, but the dictionary glosses above give them different meanings, so swapping one for the other changes what the sentence says.
In ordinary English text, does "cinder" or "coder" show up more?
"cinder" is the more common of the two: it sits at frequency rank #30,365 in our English list, against #42,066 for "coder". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Useful next steps

Pair "cinder" vs "coder" is on the table, pick a follow-up below.

  • Full dictionary entry for "cinder" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coder" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #43,065 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "cinder" and "coder" also get mixed up with nearby pairs, the highest-scored neighbour is "coder vs cower". 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 #43,065 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