Have you ever wondered if to write checkup or check-up? Both spellings are used in English, and both refer to a routine examination, especially a medical examination that helps determine whether someone is healthy. However, choosing the right spelling can be confusing because English uses hyphens differently in different words.
The good news is that checkup and check-up are both accepted spellings when used as nouns. For example, you can write, “I have a medical checkup tomorrow” or “I have a medical check-up tomorrow.” Both sentences are correct. The closed form, checkup, is common in American English, while check-up remains a familiar alternative. The important thing is to use your chosen spelling consistently and follow the style guide required for your writing.
In this guide, you will learn the meanings of both spellings, discover when to use each one, explore practical examples, and understand the difference between the noun checkup and the phrasal verb check up.
Quick Answer: Checkup or Check-Up?
Checkup and check-up are both correct spellings of the noun meaning a routine examination, especially a medical examination. Checkup is commonly used in American English, while check-up is also acceptable. For the verb phrase, use two words: “The doctor will check up on you.” Choose the spelling that matches your preferred style guide.
Why Do People Confuse Checkup and Check-Up?
People confuse these spellings because English uses three common forms for words and expressions: closed compounds, hyphenated compounds, and open compounds.
- Closed compound: Checkup
- Hyphenated compound: Check-up
- Open expression: Check up
Although these forms look similar, their grammatical roles can differ.
The first two forms are nouns that describe an examination. The third form is generally part of a verb phrase, such as “check up on someone,” which means to make sure that a person is safe, healthy, or doing well.
Understanding the difference between the noun and the verb phrase helps you avoid spelling and grammar mistakes.
What Does Checkup Mean?
Checkup is a noun that means a routine examination to assess someone’s health, condition, or performance. It is especially common when talking about visits to doctors, dentists, or other healthcare professionals.
A checkup can help identify potential health problems, monitor an existing condition, or confirm that everything is going well.
Examples of Checkup
- I have a dental checkup next Monday.
- The doctor recommended an annual checkup.
- Regular checkups can help monitor your health.
- My car needs a checkup before our long trip.
Although medical examinations are the most familiar example, the word can also describe a general inspection or assessment.
What Does Check-Up Mean?
Check-up is a hyphenated spelling of the same noun. It also means a routine examination or assessment.
The hyphen does not normally change the meaning of the word. For example, “I scheduled a checkup” and “I scheduled a check-up” communicate the same idea.
Examples of Check-Up
- She booked a health check-up for Friday.
- His annual check-up went well.
- The dentist reminded me to schedule a check-up.
- The mechanic performed a quick check-up on the vehicle.
The hyphenated spelling appears in various forms of English writing. If your workplace, school, publisher, or style guide prefers check-up, follow that preference consistently.
Checkup vs Check-Up: Comparison Table
| Feature | Checkup | Check-up |
|---|---|---|
| Part of speech | Noun | Noun |
| Meaning | A routine examination | A routine examination |
| Correct spelling? | Yes | Yes |
| Typical use | Common in American English | Also widely recognized |
| Medical context | A routine health examination | A routine health examination |
| Example | I need a checkup. | I need a check-up. |
| Meaning difference | No essential difference | No essential difference |
Key takeaway: When you mean a routine examination, both checkup and check-up are acceptable. Your choice usually depends on regional usage or the writing style you follow.
When Should You Use Checkup or Check-Up?
Choosing between the two spellings is straightforward once you understand your audience and writing requirements.
1. Use Checkup for General American English
The closed spelling checkup is a practical choice for American English writing, including everyday communication, blog posts, and general informational content.
Examples:
- I need to schedule my annual checkup.
- Her checkup revealed no major concerns.
- The doctor advised him to return for another checkup.
2. Use Check-Up When Following a Hyphenated Style
You can use check-up when it matches your organization’s preferred spelling or the dictionary or style guide you follow.
Examples:
- My annual check-up is scheduled for December.
- The nurse completed the patient’s check-up.
- She booked a check-up with her dentist.
3. Use Check Up in Verb Phrases
Use check up as two words when it functions as a verb phrase, particularly in the expression check up on someone.
Examples:
- I will check up on my grandmother tomorrow.
- The manager checks up on the team regularly.
- Please check up on the patient after lunch.
Remember that the correct form depends on how the expression functions in the sentence, not just on the meaning.
12 Examples of Checkup and Check-Up in Sentences
Here are practical examples showing how both spellings work in everyday English.
Examples Using Checkup
- Medical: I have a routine checkup with my doctor tomorrow.
- Dental: The dentist recommended a checkup every six months.
- Child health: The baby had a checkup this morning.
- General health: Regular checkups are important for monitoring your health.
- Workplace: The company arranged a health checkup for its employees.
- Vehicle inspection: My car needs a checkup before I drive across the country.
Examples Using Check-Up
- Medical appointment: She scheduled a check-up for next week.
- Dental care: He went to the dentist for his annual check-up.
- Family health: Dad’s check-up went well.
- Routine examination: The doctor recommended a follow-up check-up.
- Preventive care: A regular check-up can help you discuss health concerns with your doctor.
- General inspection: The mechanic gave the engine a quick check-up.
In all these examples, checkup and check-up function as nouns. You can generally substitute one spelling for the other without changing the intended meaning.
Common Mistakes to Avoid
Even though both noun spellings are correct, several related errors are worth avoiding.
Mistake 1: Assuming Check-Up Is Always Wrong
Incorrect assumption: “Check-up is never correct.”
Correction: Both checkup and check-up are accepted noun spellings. Check the preferred spelling for your region or style guide.
Mistake 2: Using Checkup as a Verb
Incorrect: “I will checkup on my friend tonight.”
Correct: “I will check up on my friend tonight.”
The verb phrase check up on is written as separate words.
Mistake 3: Confusing Checkup With Check-In
A checkup is an examination or assessment. A check-in is an act of registering or reporting your arrival, or a brief communication to see how someone is doing.
Examples:
- I have a medical checkup at 10 a.m.
- Hotel check-in begins at 3 p.m.
These words have different meanings.
Mistake 4: Changing Spellings Unnecessarily
Avoid switching between checkup and check-up throughout the same article unless there is a specific reason.
Choose one form and use it consistently.
Mistake 5: Assuming Every Compound Word Follows the Same Rule
English spelling conventions vary. Some compounds are written as one word, others with a hyphen, and others as separate words. It is best to check an established dictionary when you are uncertain.
What Is an Easy Memory Trick for Checkup vs Check-Up?
Use this simple memory trick:
A checkup is an examination; check up on someone means to make sure they are okay.
- Checkup: “I need a checkup.”
- Check-up: “I need a check-up.”
- Check up: “I will check up on you.”
For the noun, remember that the closed and hyphenated forms have the same basic meaning. For the verb phrase, remember to keep the words separate.
Checkup vs Check-Up in American and British English
Spelling preferences can vary across English-speaking regions, but the distinction is not an absolute rule.
American English
In American English, checkup is a common standard spelling for the noun.
Example: “I have my annual checkup next week.”
This is a useful default for American audiences.
British English
In British English, check-up is a familiar and established spelling, although usage can vary by publication and context.
Example: “She went for her annual check-up.”
Which Spelling Should International Writers Choose?
If you are writing for an international audience, either spelling can work. Consider these guidelines:
- Use checkup if you prefer the common American closed form.
- Use check-up if it matches your British-oriented or institutional style.
- Follow your publication’s dictionary or editorial guidelines when available.
- Keep the spelling consistent throughout the same document.
Do not assume that every American writer uses checkup or that every British writer uses check-up. These are general tendencies rather than strict geographical boundaries.
Similar Words to Checkup and Check-Up
Learning related expressions can help you improve your vocabulary and use the right word in different situations.
| Word or phrase | Meaning | Example |
|---|---|---|
| Examination | A careful inspection or assessment | The doctor performed an examination. |
| Medical checkup | A routine health assessment | I booked a medical checkup. |
| Health screening | A test or assessment to look for possible health problems | The clinic offers health screening. |
| Physical | A medical examination of general physical health | He needs a physical before starting the program. |
| Inspection | A close examination of something | The mechanic completed an inspection. |
| Check-in | Registration or a brief update | Hotel check-in starts at noon. |
| Check up on | To find out whether someone is safe or doing well | I called to check up on her. |
| Follow-up | A later appointment or action to review progress | The doctor arranged a follow-up. |
Although these expressions are related, they are not always interchangeable. For example, a screening may focus on a particular disease, while a routine checkup may cover general health.
Final Verdict: Checkup or Check-Up?
Both checkup and check-up are correct when used as nouns meaning a routine examination. The closed spelling is common in American English, while the hyphenated spelling is also accepted and familiar in other English-language contexts.
Use the form preferred by your dictionary, publisher, school, or workplace. If you are writing a sentence such as “I have a medical checkup tomorrow,” the closed spelling is an excellent choice for general American English.
However, when you use the expression as a verb, write check up, as in “I will check up on my friend.” This distinction between the noun and the verb phrase is more important than the choice between the two noun spellings.
Frequently Asked Questions
1. Is checkup one word or two?
Checkup is one word and is a correct noun spelling. Check-up, with a hyphen, is also correct. When using the verb phrase check up on, write the words separately.
2. Is check-up grammatically correct?
Yes. Check-up is a recognized hyphenated spelling of the noun referring to a routine examination. It has essentially the same meaning as checkup.
3. Is checkup or check-up more common in American English?
Checkup is a common spelling in American English. However, check-up is also understood and used. For American-facing content, checkup is a sensible default.
4. Do British people write checkup or check-up?
Check-up is a familiar spelling in British English, but spelling preferences can vary among dictionaries, publications, and individual writers. Follow the style guide relevant to your audience.
5. Is check up a verb or a noun?
Check up is generally part of a verb phrase, as in “I will check up on him.” The noun is usually written as checkup or check-up.
6. What is the plural of checkup?
The plural of checkup is checkups. The plural of check-up is check-ups.
Examples:
- The clinic offers annual checkups.
- The clinic offers annual check-ups.
Both forms are correct.
7. Is checkup the same as a medical examination?
A checkup is a type of examination, often a routine assessment of someone’s health. A medical examination can also refer to a more specific or detailed assessment, so the terms are related but not identical in every context.
8. Should I write annual checkup or annual check-up?
Both are correct. Write “annual checkup” if you prefer the closed spelling, or “annual check-up” if you follow a style that uses the hyphenated form. Keep your choice consistent.
Remember This
- Checkup: A correct one-word noun.
- Check-up: A correct hyphenated noun.
- Check up: A verb phrase, as in “check up on someone.”
- Checkups / check-ups: Correct plural forms of the respective noun spellings.
- Best practice: Follow your preferred dictionary or style guide and remain consistent.
Conclusion
The difference between checkup and check-up is mainly a matter of spelling preference, not meaning. Both forms refer to a routine examination, particularly one related to health. The closed spelling is common in American English, while the hyphenated form remains an accepted alternative. Understanding these variations will help you write more confidently in emails, school assignments, articles, and everyday conversations.
Remember to distinguish the noun from the verb phrase. Write “I have a checkup tomorrow” or “I have a check-up tomorrow,” but write “I will check up on you tomorrow.” Once you understand this simple distinction, choosing the correct form becomes much easier.
John Tyler is a dream researcher and content writer at SleepCout, sharing insightful articles about coded dreams, dream meanings, symbolism, sleep psychology, and practical guidance to help readers understand their dreams.
