coloringvscolouringWhat's the difference?

Which to use

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

#13,118
“coloring” frequency rank
#21,754
“colouring” frequency rank
34872
confusion score

Side-by-Side Comparison

Feature coloring colouring
Definition An act or process which applies color. Alternative spelling of coloring.

Letter map: coloring vs colouring

Shared letters muted; letters that set coloring and colouring apart highlighted. Shared run: 8.

8 ch
coloring
9 ch
colouring

Corpus notes: coloring and colouring

coloring and colouring 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 34872, derived from the frequency rank of both members and their visual similarity.

coloring is recorded at frequency rank #13,118, classified as anoun. colouring is at rank #21,754, 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 34872, this pair ranks #316,904 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of coloring vs colouring

Shared letters: cgilnor. Private to "coloring": -. Private to "colouring": u.

"coloring" · 8 letters · shape CVCVCVCC  ·  "colouring" · 9 letters · shape CVCVVCVCC

Known mistypes of this pair

  • coloringccoloring · clooring · colloring · coloirng · colorign · coloringg · colorinng · colornig
  • colouringccolouring · cloouring · collouring · coloruing · colouirng · colourign · colouringg · colourinng

Frequently Asked Questions

Can "coloring" and "colouring" 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: "coloring" vs "colouring" - which ranks higher?
"coloring" is the more common of the two: it sits at frequency rank #13,118 in our English list, against #21,754 for "colouring". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

You've compared "coloring" and "colouring". Here's where to go from here.

  • Full dictionary entry for "coloring" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "colouring" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #316,904 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • "coloring" and "colouring" also get mixed up with nearby pairs, the highest-scored neighbour is "clouding vs colouring". 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 #316,904 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