Apologize or Apologise: US vs UK Spelling Explained
Both apologize and apologise are correct — they are the same verb meaning to say sorry, spelled with a Z in American English and an S in British English.
Table of Contents
Quick Answer
| Word | Part of Speech | Main Meaning | Example |
|---|---|---|---|
| Apologize | Verb | To express regret for a fault; to say sorry (US spelling) | “She apologized for the delay.” |
| Apologise | Verb | To express regret for a fault; to say sorry (UK spelling) | “She apologised for the delay.” |
Simple rule: use apologize in American English and apologise in British English — pick one and stay consistent.
What Does Apologize Mean?
Apologize is the American spelling of the verb meaning to express regret for something you did wrong — to say sorry and make amends. It comes from the Greek apologia, “a speech in defense.”
Examples:
- He apologized for arriving late to the meeting.
- The airline apologized and offered us meal vouchers.
- She apologized to her sister for losing the bracelet.
- I want to apologize for my part in the misunderstanding.
- The company apologized publicly for the data breach.
What Does Apologise Mean?
Apologise is the British spelling of exactly the same verb — to express regret for a fault or offense. The meaning, pronunciation, and usage are identical; only the Z/S spelling differs.
Examples:
- He apologised for arriving late to the meeting.
- The airline apologised and offered us meal vouchers.
- She apologised to her sister for losing the bracelet.
- I want to apologise for my part in the misunderstanding.
- The company apologised publicly for the data breach.
Why Two Spellings?
The split traces back to Noah Webster, the American lexicographer whose 1828 dictionary pushed for simpler, more phonetic spelling. One of his reforms swapped the French-influenced -ise ending for -ize in verbs like apologize. Britain kept the older -ise forms, and both conventions stuck. The same Atlantic divide runs through dozens of words — including the single-vs-double-L split in canceled or cancelled.
Apologize vs. Apologise: Key Differences
| Feature | Apologize | Apologise |
|---|---|---|
| Spelling | -ize ending | -ise ending |
| Region | United States (also common in Canada) | United Kingdom, Australia, much of the Commonwealth |
| Pronunciation | “uh-POL-uh-jyze” | Identical: “uh-POL-uh-jyze” |
| Past tense | apologized | apologised |
| Present participle | apologizing | apologising |
| Meaning | Express regret, say sorry | Exactly the same |
Beyond the Z/S swap and the verb forms that follow from it, there is no difference at all between the two spellings.
Other -ize vs. -ise Word Pairs
| US Spelling | UK Spelling | Meaning |
|---|---|---|
| realize | realise | To become aware of |
| organize | organise | To arrange or put in order |
| recognize | recognise | To identify from memory |
| analyze | analyse | To examine in detail |
| criticize | criticise | To judge or find fault with |
Apologize and Apologise in Real Sentences
At Home
Apologize (US): “I apologized to Mom for breaking her favorite mug.”
Apologise (UK): “I apologised to Mum for breaking her favourite mug.”
The contrast: same apology, same meaning — only the Z or S changes with the writer’s country (along with mom/mum, but that is a separate choice).
At Work
Apologize (US): “The manager apologized for the scheduling error.”
Apologise (UK): “The manager apologised for the scheduling error.”
The contrast: an American email uses apologize; a British email uses apologise — mixing them in one message looks sloppy.
In Conversation
Apologize (US): “I sincerely apologize for the confusion.”
Apologise (UK): “I sincerely apologise for the confusion.”
The contrast: spoken aloud they are identical — the difference exists only on the page.
Common Mistakes
Verb-form slip-ups are common in English — writers who hesitate over dieing vs dying often mix apologize and apologise too.
Mistake 1: Mixing spellings in one document
❌ “We apologize for the delay, and our London team apologises again.”
✅ “We apologize for the delay, and our London team apologizes again.”
Why: pick the American or British spelling and use it throughout.
Mistake 2: Using apologise in American writing
❌ (US cover letter) “I apologise for the short notice.”
✅ (US cover letter) “I apologize for the short notice.”
Why: American style guides expect apologize.
Mistake 3: Using apologize in British writing
❌ (UK newspaper) “The minister will apologize tomorrow.”
✅ (UK newspaper) “The minister will apologise tomorrow.”
Why: British style guides expect apologise.
Mistake 4: Wrong verb forms
❌ “He has apologize for his mistake.”
✅ “He has apologized for his mistake.” / “He has apologised for his mistake.”
Why: the past tense follows the spelling you chose — apologized with Z, apologised with S.
Pronunciation
Both spellings are pronounced “uh-POL-uh-jyze” — rhyming with apologies (“uh-POL-uh-jeez”). The Z/S swap changes nothing about how the word sounds.
How to Remember the Difference
Link the letter to the country: the American spelling uses Z — think of the letter Z as in “zee,” the American name for the last letter of the alphabet. The British spelling uses S — think “S like Sorry,” the word you are spelling.
- Z = American “zee” → apologize.
- S = Sorry starts with S → apologise.
- Match your spelling to your audience, and stay consistent throughout.
Frequently Asked Questions
Is it apologize or apologise?
Both are correct. Use apologize in American English and apologise in British English.
Which spelling is correct in Canada and Australia?
Australia follows British apologise; Canada accepts both but generally prefers apologize.
Do apologize and apologise mean the same thing?
Yes — exactly the same verb, meaning to express regret. See Merriam-Webster’s entry for apologize for the full definition.
What about apologized vs apologised?
The past tense follows your spelling: apologized (US), apologised (UK) — and the same goes for apologizing vs. apologising.
Are there other words like this?
Dozens — realize/realise, organize/organise, recognize/recognise, analyze/analyse, and criticize/criticise all follow the same -ize/-ise split.
Which should I use in an international document?
Match your audience or house style; if there is none, pick one spelling and use it consistently from start to finish.
Is “apologize” with a Z ever used in Britain?
Yes — in academic publishing. The Oxford University Press house style (“Oxford spelling”) prescribes -ize endings even for British readers, on the grounds that the Z form is etymologically older (from Greek -izein). So a London-published linguistics paper may well say “apologize.” Outside academia, though, British newspapers, schools, and government writing overwhelmingly use apologise.
Does the S/Z choice change the pronunciation?
Not at all. Apologize and apologise sound identical — the difference is purely visual. That is why the mix-up is so common in writing: your ear gives you no clue which one your audience expects, so you have to know the regional convention.
Conclusion
Apologize and apologise are the same verb in different national dress — Z for America, S for Britain. Learn the pattern once, and a whole family of -ize/-ise words falls into place.
