Tuesday, July 15, 2025

12 Common Spelling Differences Between British and American English

British vs American Spelling: 12 Words You Might Be Getting Wrong

Comparison chart of British and American English spelling differences

English spelling can vary significantly depending on whether you're using British or American English. These differences can be confusing for learners and even native speakers. In this post, we explore 12 common words with different spellings in the UK and the US.

1. Colour πŸ‡¬πŸ‡§ vs Color πŸ‡ΊπŸ‡Έ

British English keeps the "u" in words like colour, honour, and favour. American English drops it.

2. Centre πŸ‡¬πŸ‡§ vs Center πŸ‡ΊπŸ‡Έ

British English uses "re" endings, while American English flips them to "er" (e.g., metre vs meter).

3. Realise πŸ‡¬πŸ‡§ vs Realize πŸ‡ΊπŸ‡Έ

British English uses "s", American prefers "z" in verbs like realize, organize, and recognize.

4. Defence πŸ‡¬πŸ‡§ vs Defense πŸ‡ΊπŸ‡Έ

British uses "ce", American uses "se" in nouns like licence/license, offence/offense.

5. Travelling πŸ‡¬πŸ‡§ vs Traveling πŸ‡ΊπŸ‡Έ

Double "l" is common in British English, but American English drops one "l".

6. Ageing πŸ‡¬πŸ‡§ vs Aging πŸ‡ΊπŸ‡Έ

British English often retains the "e", while American simplifies it.

7. Jewellery πŸ‡¬πŸ‡§ vs Jewelry πŸ‡ΊπŸ‡Έ

British English adds extra letters in some words, while American uses shorter forms.

8. Tyre πŸ‡¬πŸ‡§ vs Tire πŸ‡ΊπŸ‡Έ

This one refers specifically to vehicles—don’t mix it up with "tired"!

9. Programme πŸ‡¬πŸ‡§ vs Program πŸ‡ΊπŸ‡Έ

Especially in broadcasting, British keeps "programme"; American uses "program" in all contexts.

10. Cheque πŸ‡¬πŸ‡§ vs Check πŸ‡ΊπŸ‡Έ

For banking, British uses "cheque"; "check" is for verification and banking in the US.

11. Plough πŸ‡¬πŸ‡§ vs Plow πŸ‡ΊπŸ‡Έ

British often keeps older or traditional spellings with "gh".

12. Sulphur πŸ‡¬πŸ‡§ vs Sulfur πŸ‡ΊπŸ‡Έ

Scientific terms may differ too — the IUPAC accepts "sulfur" universally now.

Summary Table

British English American English
ColourColor
CentreCenter
RealiseRealize
DefenceDefense
TravellingTraveling
AgeingAging
JewelleryJewelry
TyreTire
ProgrammeProgram
ChequeCheck
PloughPlow
SulphurSulfur

Why It Matters

Using the correct spelling for your audience (UK or US) helps your writing look professional and appropriate. If you’re writing for an international audience, stay consistent!

Join the Conversation

Which spelling differences have confused you the most? Share in the comments below!

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