Capitalization

What Is Capitalisation?

Capitalisation means writing the first letter of a word as an uppercase (capital) letter. Knowing when to capitalise is an essential writing skill — errors can make your work look careless and change the meaning of sentences.

Key Terms

Term	Definition
Proper noun	The specific name of a person, place, or thing
Common noun	A general name for a category of things
Title case	Capitalising the main words in a title
Sentence case	Only capitalising the first word of a sentence
Acronym	An abbreviation using initial letters, usually all caps (e.g. NASA)

Core Rules of Capitalisation

1. First Word of a Sentence

Always capitalise the first word of every sentence.

• The dog barked loudly.
• After lunch, we went for a walk.

2. The Pronoun "I"

The pronoun I is always written as a capital letter, regardless of its position.

• She and I went to the market.

3. Proper Nouns

Capitalise the specific names of people, places, organisations, languages, nationalities, and brands.

Category	Examples
People	Emma Watson, Albert Einstein
Places	Paris, Mount Everest, the Amazon
Languages	English, Mandarin, Arabic
Nationalities	Australian, Brazilian, Japanese
Organisations	United Nations, Apple Inc.
Days and months	Monday, January
Holidays	Christmas, Eid, Diwali

Do not capitalise seasons when used generally: spring, summer, autumn, winter.

4. Titles Before Names

Capitalise titles when used directly before a name, but not when used generally.

• President Lincoln gave a speech. (title before name)
• The president gave a speech. (general use)
• Doctor Patel is our family doctor. (before name vs general)

5. Titles of Works (Title Case)

In titles of books, films, songs, and articles, capitalise:

• The first and last word
• All major words (nouns, verbs, adjectives, adverbs)
• Do not capitalise articles (a, an, the), short prepositions (in, of, on), or conjunctions (and, but) unless they are the first word.

Examples:

• The Lion, the Witch and the Wardrobe
• Pride and Prejudice
• To Kill a Mockingbird

6. Beginning of Quoted Speech

Capitalise the first word of a direct quotation if it forms a complete sentence.

• She said, "We should leave now."
• "The match," he said, "was incredible." (second part not capitalised — continuation)

Worked Examples

Before correction: my brother lives in new york and studies french at columbia university.

After correction: My brother lives in New York and studies French at Columbia University.

Why: My starts the sentence; New York is a place name; French is a language; Columbia University is a specific institution.

Common Mistakes

• Capitalising common nouns: "I love my Dog" — dog is a common noun, not a proper noun.
• Not capitalising languages or nationalities: "She speaks spanish" — should be Spanish.
• Seasons: "I love Winter" — seasons are lowercase unless part of a title or personified.
• Titles without a name: "I saw the President" (referring generally) should be "the president".
• Mid-sentence capitalisation: Capitalising random words for emphasis ("I am Very Tired") is incorrect in standard writing.

Tips and Tricks

• Ask yourself: "Is this a specific name or a general category?" Specific = capitalise.
• Days, months, languages, nationalities, and holidays are always capitalised in English (unlike in some other languages).
• When proofreading, scan specifically for lowercase letters at the start of sentences and for proper nouns.
• Acronyms are usually all caps: NASA, BBC, NHS — but always check how an organisation writes its own name.

Capitalisation Across Different Text Types

The rules for capitalisation can vary slightly depending on the type of writing:

• Formal essays and reports: Follow all standard rules strictly — proper nouns, sentence starts, titles before names, titles of works.
• Headings: Often use title case (The Importance of Good Nutrition) or sentence case (The importance of good nutrition) — check your style guide.
• Social media and informal messages: Conventions are more relaxed, but standard capitalisation still aids readability and professionalism.
• Poetry: Poets sometimes break capitalisation rules deliberately for effect — e.g., starting each new line with a capital letter, or avoiding capitals entirely.
• Signage and design: ALL CAPS is sometimes used for visual impact, but avoid it in body text as it is harder to read and can seem aggressive.

When writing in an academic or professional context, always default to standard capitalisation rules.

Quick Reference

Always Capitalise	Never Capitalise
First word of a sentence	Seasons (spring, winter)
The pronoun I	Common nouns (dog, city, river)
Proper nouns (names, places)	Titles used without a name (the president)
Days and months	General occupations (she is a doctor)
Languages and nationalities	General academic subjects (maths, history)
Titles before names (President Obama)	Articles/conjunctions in mid-title
Names of organisations and brands