Cambridge marks “fulfilment” as mainly UK and notes that US English usually uses “fulfillment.” The guide treats the choice as a documented variant boundary rather than assuming that one form is universally incorrect.
ReviewedEvidence1 sourceSectionEnglish Usage
Quick answer
Both are standard; “fulfillment” is usual in US English and “fulfilment” is mainly UK.
Key details
Confusion Familyregional-variant
Rule Familyregional-usage
TermsFulfillment, Fulfilment
Variant ScopeCambridge marks “fulfilment” as mainly UK and notes that US English usually uses “fulfillment.”
Further guidance
Core difference
The noun meaning is the same across these spellings.
Style Boundary
Match the spelling to regional or house style, while preserving official names and quotations.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
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Cambridge marks “afterward” as the US form and “afterwards” as mainly UK, with the same adverbial meaning. The guide treats the choice as a documented variant boundary rather than assuming that one form is universally incorrect.
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Cambridge labels “ardour” as UK and “ardor” as US for the same noun meaning great enthusiasm or love. This guide treats the choice as a documented spelling convention and does not invent a meaning difference between the variants.
Cambridge documents “artifact” as the US spelling and “artefact” as mainly UK. The guide preserves that regional spelling boundary without inventing a meaning difference.
