CO2vscoliTell them apart

Which to use

“CO2” and “coli” are a confusable German pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#4,186
“CO2” frequency rank
#47,301
“coli” frequency rank
51487
confusion score

Side-by-Side Comparison

Feature CO2 coli
Definition chemische Summenformel von Kohlendioxid Genitiv Singular des Substantivs cola

Letter map: CO2 vs coli

Shared letters muted; letters that set CO2 and coli apart highlighted. Shared run: 2.

3 ch
CO2
4 ch
coli

Spelling & dictionary notes on CO2 vs coli

CO2 and coli are indexed as a confusable German 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 51487, derived from the frequency rank of both members and their visual similarity.

CO2 is recorded at frequency rank #4,186, classified as anoun, pronounced [ˌt͡seːoˈt͡svaɪ̯]. coli is at rank #47,301, tagged as anoun, pronounced […].

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 51487, this pair ranks #1,133,705 of 2,006,359 scored German confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of CO2 vs coli

Shared letters: co. Private to "CO2": -. Private to "coli": il.

"CO2" · 2 letters · shape CV  ·  "coli" · 4 letters · shape CVCV

Known mistypes of this pair

  • coliccoli · cloi · coil · colli · ocli

Frequently Asked Questions

Can "CO2" and "coli" be used interchangeably?
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.
Frequency check: "CO2" vs "coli" - which ranks higher?
"CO2" is the more common of the two: it sits at frequency rank #4,186 in our German list, against #47,301 for "coli". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

After this comparison

Pair "CO2" vs "coli" is on the table, pick a follow-up below.

  • Full dictionary entry for "CO2" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "coli" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #1,133,705 of 2,006,359 scored German confusable pairs in this corpus vintage. Corpus statistics
  • "CO2" and "coli" also get mixed up with nearby pairs, the highest-scored neighbour is "coli vs puzzles". 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 #1,133,705 of 2,006,359 scored German pairs, corpus vintage 2026-09-03, not spelling advice.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list