fulfillmentvsfulfilmentWhich spelling fits?

Which to use

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

#16,240
“fulfillment” frequency rank
#30,053
“fulfilment” frequency rank
46293
confusion score

Side-by-Side Comparison

Feature fulfillment fulfilment
Definition US spelling of fulfilment. The act of fulfilling or the state or quality of being fulfilled; consummation; completion; realization.

Letter map: fulfillment vs fulfilment

Shared letters muted; letters that set fulfillment and fulfilment apart highlighted. Shared run: 10. fulfillment runs 11 letters (CVCCVCCCVCC) against fulfilment's 10 (CVCCVCCVCC) - the length gap alone is often enough to separate them once you know to check it.

11 ch
fulfillment
10 ch
fulfilment

Spelling & dictionary notes on fulfillment vs fulfilment

fulfillment and fulfilment 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 46293, derived from the frequency rank of both members and their visual similarity.

fulfillment is recorded at frequency rank #16,240, classified as anoun. fulfilment is at rank #30,053, tagged as anoun, pronounced /fʊlˈfɪl.mənt/.

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 46293, this pair ranks #213,142 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of fulfillment vs fulfilment

Shared letters: efilmntu. Private to "fulfillment": -. Private to "fulfilment": -.

"fulfillment" · 11 letters · shape CVCCVCCCVCC  ·  "fulfilment" · 10 letters · shape CVCCVCCVCC

Known mistypes of this pair

  • fulfillment ← ffulfillment · flufillment · fuflillment · fulffillment · fulfillemnt · fulfillmennt · fulfillmentt · fulfillmetn
  • fulfilment ← ffulfilment · flufilment · fuflilment · fulffilment · fulfilemnt · fulfilmennt · fulfilmentt · fulfilmetn

Frequently Asked Questions

Can "fulfillment" and "fulfilment" 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: "fulfillment" vs "fulfilment" - which ranks higher?
"fulfillment" is the more common of the two: it sits at frequency rank #16,240 in our English list, against #30,053 for "fulfilment". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

What to do next

Pair "fulfillment" vs "fulfilment" is on the table, pick a follow-up below.

  • Full dictionary entry for "fulfillment" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "fulfilment" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #213,142 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
  • 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 #213,142 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