You’re polishing a resume or a college essay. Then you stall. Do you type it as one word or two? That single space can make you second-guess everything. Here’s the short answer. Write it as two words. High school isn’t standard English. Major dictionaries list high school as two words. Don’t worry. Plenty of confident writers hit this wall every semester. A few teachers do too.
Still, the mix-up makes sense. English has plenty of closed compounds like classroom and notebook. Your brain expects the same pattern here. This guide on High School or Highschool shows you why two words win. You’ll also learn about capitalization and hyphens. Plus you’ll get real examples you can copy straight into your own writing. It only takes a few minutes. Let’s clear this up for good.
Quick Answer
Use high school as two words. That’s the correct spelling in American English spelling and British English spelling. High school counts as a high school spelling mistake in standard writing.
Think of it like ice cream or post office. Each part keeps its own space. The same goes for your high school education and every phrase built around it.
Don’t take this on faith. Check the Merriam-Webster entry or the Cambridge Dictionary page. Both list the term as two words.
Why People Confuse Them
English loves gluing words together. Classroom, textbook, and schoolyard are everyday proof. So your brain tries the same trick with high school.
Fast typing makes it worse. Hashtags and usernames squash words together. Spell checkers don’t always flag highschool either. That’s how a highschool misspelling slips through.
Picture a junior named Maya working on her first high school college application. She types highschool in her essay title. Her English teacher circles it in red. One tiny slip dents an otherwise polished piece.
Key Differences At A Glance
Here’s a side by side look. It shows what separates the correct form from the common slip. Skim it before your next draft.
| Feature | High school | Highschool |
| Standard spelling | Yes | No |
| Dictionary entry | Listed | Not listed as standard |
| Word type | Open compound | Wrongly closed |
| Formal writing | Accepted | Treated as an error |
| In school names | Capitalized, as in Central High School | Only in brand styling |
Compound words in English come in three flavors: open, closed, and hyphenated. High school sits in the open group.
Closed compound words like notebook earned their merged spelling through years of common use. High school never made that jump. One form passes every formal writing check. The other doesn’t.
Are They the Same Word?
They share a meaning but not a status. High school meaning points to a school for teens, typically grades 9 to 12 in the US. Highschool just copies that meaning with the wrong spacing.
So don’t treat them as two choices. You have one term and one correct way to write it. The other is a slip.
Compare it to alot and a lot. Plenty of people type alot. Nobody calls it correct. These common spelling errors follow the same logic.
US vs UK Preference
In the US, high school is the everyday term for the later teen years. Americans use it on forms, transcripts, and in casual chat. It’s the default in standard English spelling for American readers.
In the UK, most students attend a secondary school instead. Some schools still carry High School in their names. Scotland offers several examples. Even then, British writers keep the two word spelling.
Other countries add more variety. Senior high school appears in places like Australia and Japan. The wording shifts from place to place. The spacing doesn’t, whether you compare high school in US and UK English or other varieties.
Which Spelling Should You Use?
Choose high school every time. It works in academic writing, professional writing, and casual texts. You won’t lose points in any of them.
Say you’re sending a high school resume to a hiring manager. Clean spelling signals that you care about details. Messy spelling suggests the opposite.
Writing for a school paper or a blog? The same rule applies. Major style guides such as AP follow it too. Consistency builds trust with readers.
When One Spelling Looks Wrong

Sometimes a spelling just feels off. You’ve seen highschool in usernames and ads so often that it starts to look normal. Familiarity fools your eyes.
Try the swap test. Replace high school with elementary school or middle school. Nobody writes elementaryschool or middleschool. The pattern gives you the answer.
A ten second dictionary check helps too. Then keep this rule handy: two words, lowercase, no hyphen in most cases. It’s one of the simplest high school spelling rules around.
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Common Mistakes (and Quick Fixes)
A few slips show up again and again. Spot them and you’ll fix them fast.
- One word spelling: Split highschool into high school.
- Capital letters everywhere: Use lowercase unless it’s part of a name like Central High School.
- Hyphen on the noun: Write I finished high school. Skip the hyphen.
- Habit hyphens before nouns: Choose high school student over high-school student in most style guides.
- Mixed styles in one document: Pick one form and stick with it.
Here’s a quick fix in action. Change My highschool reunion is in June to My high school reunion is in June. One space does the job.
Everyday Examples
Real sentences stick better than rules. These high school example sentences are free to borrow.
- Every high school student needs a quiet corner for homework.
- A high school senior juggles exams and deadlines at once.
- She framed her high school diploma and hung it in the hallway.
- In many US towns, high school graduation happens in late spring.
- My high school teacher read my first essay out loud.
- Friday night high school football packs the stands.
- Our high school reunion is set for next June.
- Request your high school transcript from the registrar.
- That high school class starts at 8 a.m.
- His high school essay won a local prize.
Here’s correct and incorrect spelling side by side. Incorrect: I loved my highschool teacher. Correct: I loved my high school teacher. Every phrase keeps its space.
Dictionary-Style Word Details
Think of this part as a quick reference card. Each entry stays short on purpose.
Verb
High school isn’t a verb in standard English. Formal dictionaries don’t list it that way. Slang sometimes bends it, as in we high schooled together.
Need an action word? Try attend, finish, or graduate from. They keep your sentences clean.
Noun
It’s a noun. It names a school for teens who’ve moved past middle school.
Writers also place it before other nouns, as in high school gym. Some call that the high school adjective use. Strictly, it’s still a noun doing a modifier’s job.
Synonyms
Need a swap? Secondary school is the most common alternative. Upper school and senior high school work in some regions.
Words like academy or prep school fit special cases only. A prep school usually points to a private school. Don’t treat them as perfect matches.
Example Sentences
- You’ll learn more about yourself in high school than you expect.
- The high school on Maple Street won the state title.
- He mentioned his high school nickname during the interview.
- Our old high school gym still smells like floor wax.
Short lines like these show high school usage in real life. They also model solid high school grammar.
Word History
The term has Scottish roots. Edinburgh’s Royal High School is a famous example.
America adopted the idea in the early 1800s. Boston’s English High School opened in 1821 and is often called the first public high school in the country.
Phrases Containing
Plenty of phrases borrow the term. Each one keeps the two word spelling.
- High school diploma
- High school sweetheart
- High school dropout
- High school prom
- High school equivalency
High School vs Middle School and Other School Terms
Mixing up school terms causes its own confusion. In the US, elementary school comes first. Middle school follows. Then comes high school. After college, some students head to graduate school.
High school vs middle school mostly comes down to age. Middle schoolers are typically 11 to 14. High schoolers are typically 14 to 18.
Notice something? Every term uses two words. That pattern should settle your doubts. None of them merge into one.
Capitalization and Hyphens Made Simple
High school capitalization trips up plenty of writers. Use lowercase for the general term. Capitalize only in a high school proper noun such as Lincoln High School.
High-school hyphenation brings a different headache. Most style guides skip the hyphen in high school student and high school senior. The phrase already reads smoothly without it.
Some publishers set their own rules. Check your house style if you write for one. When in doubt, skip the hyphen.
Frequently Asked Questions
Is high school one word or two words?
It’s two words. When you weigh High School or Highschool, the open compound high school is the standard spelling in dictionaries.
Is highschool ever correct?
Rarely. Only a brand name or stylized title might use it. For High School or Highschool in regular writing, pick two words.
Why is high school not one word?
English treats it as an open compound. In High School or Highschool, the space keeps both words visible, like post office.
Should high school be capitalized?
Only in a proper name, like Lincoln High School. In the High School or Highschool debate, lowercase stays correct for general use.
Is high-school with a hyphen correct?
Mostly no. Most guides prefer high school student with no hyphen. Settle High School or Highschool first, then skip it.
Is high school a noun or adjective?
It’s a noun that can modify other nouns, as in high school diploma. High School or Highschool? Two words either way.
Is highschool a British spelling?
No. British English also writes two words. On High School or Highschool, both sides agree, though UK writers favor secondary school.
What is the correct spelling: high school diploma or highschool diploma?
Write high school diploma. The High School or Highschool rule applies to every phrase built on it. Resumes and applications included.
Conclusion
High School or Highschool is one of those spelling questions with a clean answer. Write high school as two words. That rule holds in American English and British English alike. Dictionaries and style guides back it up. So the High School or Highschool debate ends right here.
Keep a few habits in mind. Use lowercase for the general term. Capitalize it only inside a proper name like Roosevelt High School. Skip the hyphen in most cases. Next time you face High School or Highschool, you’ll know exactly what to type. Now drop a comment with the spelling slip that tripped you up. Share this guide with a friend who’s applying to college. Bookmark it for your next essay or resume draft. Quick checks save you from silly errors. Check back for updates as style guides evolve.