Updated: 25 May 2026 · Reading time: 5 minutes
You’ve narrowed it down to a five-letter word that means a hue, you’ve used four guesses, and you’re staring at COLOR vs COLOUR wondering which one Wordle® will accept. We’ve all been there.
The short version: Wordle® uses American English for both its answers and accepted-guess list. A few NZ spellings will get the “Not in word list” error, even when they’re perfectly valid words in this country.
The quick answer
- Wordle® was created by Welsh engineer Josh Wardle but is now owned by The New York Times Company.
- The answer list and accepted-guess list are both American English.
- Words that exist only in NZ/UK English spelling will be rejected.
- That said, many British/NZ spellings happen to match the American version.
The 5 spelling differences that trip up Kiwis
1. -OUR (NZ) vs -OR (US)
NZ: COLOUR, FAVOUR, HONOUR, VAPOUR. US: COLOR, FAVOR, HONOR, VAPOR.
For Wordle®: Try the US version. COLOUR is 6 letters anyway.
2. -RE (NZ) vs -ER (US)
NZ: CENTRE, METRE, LITRE, FIBRE. US: CENTER, METER, LITER, FIBER.
For Wordle®: US spellings are accepted. FIBER is in; FIBRE is out. METER is in; METRE is out.
3. -ISE (NZ) vs -IZE (US)
Most affected words are six letters or longer. Five-letter words like SEIZE and PRIZE don’t differ.
4. Doubled-consonant rules: -LL (NZ) vs -L (US)
NZ: TRAVELLED, JEWELLER. US: TRAVELED, JEWELER. Doesn’t usually fit in five letters.
5. Specific word swaps
- NZ TYRES → US TIRES (both 5 letters)
- NZ GREY → US GRAY (both 4 letters)
- NZ PLOUGH → US PLOW
- NZ MOULD → US MOLD
The unwritten rule
If both spellings exist, try the US version. Wordle®’s accepted-guess list leans US. NZ-only spellings are usually rejected outright.
Kiwi words that ARE accepted
- MARAE — yes, accepted
- WAHINE — 6 letters, doesn’t fit
- PAVLOVA — too long
- JANDAL — 6 letters
Most te reo Māori loanwords are either too long for five letters or not on the standard English dictionary.
What about Australian English?
Australia uses the same -OUR / -RE / -ISE conventions. Aussie players hit the same traps. If an Aussie tip says “use the US spelling”, they’re saving you a guess.
Wordle® answers that have surprised Kiwis
Three times in 2024-2025, Wordle® answers caused mild outrage on NZ social media:
- FAVOR — Kiwis tried FAVOUR (6 letters, doesn’t fit) before getting the spelling right.
- MOLDY — many Kiwis tried MOULDY (also 6 letters) first.
- GRAY — split house. Some Kiwis got it right; others kept trying GREY.
Spelling cheat sheet
| NZ English | US English (use this in Wordle®) |
|---|---|
| COLOUR | COLOR |
| FAVOUR | FAVOR |
| CENTRE | CENTER |
| METRE | METER |
| FIBRE | FIBER |
| GREY | GRAY |
| MOULDY | MOLDY |
| TYRES | TIRES |
FAQ
Q: Will Wordle® ever switch to international English? Unlikely. NYT serves a largely American audience.
Q: What about clones? Most Wordle® clones also use US English dictionaries.
Q: Why won’t Wordle® accept GREY? It usually does — GREY and GRAY are both on the accepted-guess list. If you get an error, double-check spelling and try the other variant.
The takeaway
When guessing a Wordle® answer in 2026 with a US/NZ spelling decision, try the American version first. Small concession that saves you a guess and a sulk.
Our Wordle® Hint Solver doesn’t care about spelling differences. It works with whatever five-letter combination you’ve got so far.
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