Capital Letters vs Capitalization vs Capitalisation

Short answer: they all point to the same grammar concept — usingcapital letters correctly. The difference you see online mainly comes fromspelling variants:

• Capitalization — US spelling
• Capitalisation — UK spelling
• Capital letters — common phrase in UK classrooms (KS1/KS2)

What do people search?

In the UK, teachers and parents often search for capital letters games orcapitalisation activities. In the US and globally, capitalization gamesis more common. Search engines frequently unify these spellings, so results look similar.

What rules will you practise?

• Sentence starts (The first word in a sentence)
• Pronoun I
• Proper nouns (people, places, organisations/organizations, brands)
• Days and months (Monday, June)
• Holidays (Christmas, Halloween)
• Titles of works (The Lord of the Rings)
• Acronyms and initialisms (NASA, FBI)
• First word in direct quotations

Ready to practise?

Try the interactive capitalization game on our homepage, use the complete rule guide, or practise periods, question marks, and exclamation points in the punctuation game.

Start playing now → · Read the rules → · Play punctuation →

Prefer UK wording? Visit the Capitalisation (UK) page.