capitalize proper names, geographic terms, historic episodes...

Small capitalization errors can change tone and meaning. Below are clear rules, handy memory tricks, and many ready-to-copy corrections for work, school, and casual writing.

Use the paired examples and the short rewrite checklist to fix sentences quickly.

Quick answer: When to capitalize

Capitalize the first word of a sentence, unique names (people, places, brands, events), and formal titles when used as titles. Use sentence case for normal sentences; reserve title case for headlines, official names, or formal titles.

People, places, brands, historic events, and official program names = capitalize
Job titles: capitalize before a name (President Biden), lowercase when generic (the president)
Compass words: lowercase as directions (drive north), capitalize as region names (the North)

Core rules you can use right now

Three quick checks: (1) First word of a sentence - capitalize. (2) Is it a unique name or official title? - capitalize. (3) If it's descriptive or generic - lowercase.

Capitalize examples: John, New York, World War II, Harvard University, Project Atlas
Lowercase examples: manager (generic), river (unless part of a name), southbound (direction)
If you're unsure, rewrite so the phrase is clearly a name or clearly descriptive.

Wrong: we will meet Monday in the main conference room.
Right: We will meet Monday in the main conference room.
School - Wrong: she studied the renaissance in her art history class.
School - Right: She studied the Renaissance in her art history class.

Proper names, titles, and organizations (work examples)

Treat any official name as a proper noun. Capitalize job titles only when they formally precede a name.

Capitalize official names: Finance Department, Human Resources, Product Release Notes
Title before a name: Chief Operating Officer Maria Park; after/name-generic: the chief operating officer
Spell brand and product names exactly as the owner does (iPhone, Nike Air).

Work - Wrong: we launched project atlas last Friday.
Work - Right: We launched Project Atlas last Friday.
Work - Wrong: please contact the finance team for approval.
Work - Right: Please contact the Finance Team for approval.
Work - Wrong: contact manager John Lee for access.
Work - Right: Contact Manager John Lee for access.

Hyphenation and compounds (school examples)

In titles, capitalize major words. For hyphenated compounds, style guides differ; many capitalize both elements if the second is a noun. In running text, treat compounds as normal words unless part of an official name.

Title case: The State-of-the-Art Review
Running text: the decision-making process
Check the institution's style for course or form names (Re-Entry Form vs re-entry form)

Work - Wrong: refer to the decision-making guidelines posted on the intranet.
Work - Right: Refer to the Decision-Making Guidelines posted on the intranet.
School - Wrong: the re-entry form is due next week.
School - Right: The Re-Entry Form is due next week.
School - Wrong: she submitted the peer-reviewed article to the journal.
School - Right: She submitted the peer-reviewed article to the journal.

Spacing, punctuation, and capitalization

Punctuation affects capitalization only sometimes. After a colon, capitalize if a complete sentence or a title follows; otherwise use lowercase. Preserve capitalization inside quotes when the quoted text begins a sentence or is a title.

After a colon: capitalize for full sentences or titles; lowercase for list fragments
Inside quotes: keep the speaker's capitalization ("We'll leave at noon.")
Parentheses do not reset capitalization unless they enclose a full sentence

Wrong: He had one goal: To finish the project by Friday.
Right: He had one goal: to finish the project by Friday.
Casual - Wrong: She said, "we'll meet at noon."
Casual - Right: She said, "We'll meet at noon."
Work - Wrong: We need three items: Budget, Timeline, and resources.
Work - Right: We need three items: budget, timeline, and resources.

Try your own sentence

Test the whole sentence, not just the phrase. Context usually shows whether a word is a name or a descriptor.

Geography, compass directions, holidays, and historic events

Capitalize named regions and widely recognized areas, holidays, and historical events. Use lowercase for compass directions used as directions.

Capitalize regions: the Pacific Northwest, the Middle East, West Africa
Lowercase directions: head south, northeast corner
Capitalize holidays and eras: Christmas, World War II, the Renaissance

Casual - Wrong: i'm moving to the midwest in July.
Casual - Right: I'm moving to the Midwest in July.
Casual - Wrong: we drove east for three hours.
Casual - Right: We drove east for three hours.
Casual - Wrong: we'll have a christmas party next week.
Casual - Right: We'll have a Christmas party next week.
School - Wrong: his thesis covers the renaissance and enlightenment.
School - Right: His thesis covers the Renaissance and Enlightenment.

Fix your own sentence: quick rewrite help (3-step rewrite + examples)

Three-step rewrite: (1) Capitalize the sentence start. (2) Identify and capitalize unique names or formal titles. (3) If still unclear, rewrite so the phrase is clearly a name or clearly descriptive.

Add clarifying context when a phrase might be a title: include "the" or the official name in parentheses.
Move a title before a name when you need to show a formal title.

Work - Rewrite: Ambiguous: "talk to the vice president about the policy." → "Talk to Vice President Hernandez about the policy."
Work - Rewrite: Ambiguous: "submit to the editorial board." → "Submit to the Editorial Board (the official committee name)."
School - Rewrite: Awkward: "the north campus building is closed." → "The North Campus building is closed."
Casual - Rewrite: "we're having a summer concert" → if official: "We're having the Summer Concert on June 12." Otherwise: "We're having a summer concert."

Examples: compact wrong/right pairs you can copy

Copy these corrections for emails, assignments, and messages. Short notes show why capitalization changes the meaning.

Work - Wrong: we launched project atlas last Friday.
Work - Right: We launched Project Atlas last Friday.
Work - Wrong: please send the report to the operations manager.
Work - Right: Please send the report to the Operations Manager.
Work - Wrong: the ceo will join the call at 2pm.
Work - Right: The CEO will join the call at 2 p.m.
School - Wrong: i'm enrolled in chemistry 101 this fall.
School - Right: I'm enrolled in Chemistry 101 this fall.
School - Wrong: she's writing her thesis for the history department.
School - Right: She's writing her thesis for the History Department.
School - Wrong: the midterm covers chapters 1-6 of modern art.
School - Right: The midterm covers chapters 1-6 of Modern Art.
Casual - Wrong: we're heading to the south of France next month.
Casual - Right: We're heading to the South of France next month.
Casual - Wrong: happy new year to everyone!
Casual - Right: Happy New Year to everyone!
Casual - Wrong: let's meet at the west gate.
Casual - Right: Let's meet at the West Gate.
Wrong: ambiguous: "talk to the vice president about the policy."
Right: fix: "Talk to Vice President Hernandez about the policy."
Wrong: ambiguous: "sign the north campus waiver."
Right: "Sign the North Campus Waiver (official form name)." or "Sign the north-campus waiver (if descriptive)."

Memory tricks and similar mistakes

Mnemonic: NAME - Nouns (unique), Acronyms, Major titles, Events. If it fits NAME, capitalize it.

Related traps: punctuation (colons, quotes), compounds, and inconsistent heading styles. When in doubt, pick sentence case for body text and stay consistent.

Try NAME: Is this a unique Name, an Acronym, a Major title, or an Event? If yes, capitalize.
If a phrase repeats across documents, record its capitalization in a style sheet.
Choose and apply title case or sentence case consistently for headings.

Usage: 'department' - capitalize only if it's the department's official name.
Usage: 'North' vs 'north' - lowercase for direction, capitalize for region: "travel north" vs "the North."
Work - Usage: Pick heading case and keep it across the document: "Quarterly Report" or "Quarterly report."

FAQ

Should I capitalize job titles after a name?

Usually not. Capitalize when the title immediately precedes a name as a formal title (President Maria Lopez). Lowercase when it follows the name or is used generically (Maria Lopez, the president).

Do I capitalize directions like north or south?

Lowercase when they indicate direction (drive north). Capitalize when they refer to a recognized region or cultural area (the South, the Midwest, the North Pole).

Is an email subject line title case or sentence case?

Both work. Sentence case feels friendlier for most emails; use title case for formal announcements or when your brand uses it consistently.

When do I capitalize after a colon?

Capitalize after a colon only if what follows is a complete sentence or a formal title. For short phrases or list fragments that continue the sentence, use lowercase.

How can I check a single sentence quickly?

Use the three-step rewrite: capitalize the first word, identify and capitalize proper names, and rewrite ambiguous phrases to be clearly named or clearly descriptive. If unsure, consult the official source for the name or run the sentence through a grammar checker.

Quick check one sentence now

Need a fast second pair of eyes? Paste a single sentence into a grammar tool or the checker above to highlight capitalization problems and suggested rewrites.

One quick check will catch department names, formal titles, hyphenated forms, and other common traps.