The difference in Criteria vs Criterion is simple. “Criterion” is singular, and “criteria” is plural. Use criterion for one standard and criteria for two or more. Say “Price is my main criterion,” but “Price and location are my criteria.”
This guide on Criteria vs Criterion gives you the rule, a memory trick, and clear examples. You will also see common mistakes, pronunciation, alternative words, and a short quiz. By the end, you will know exactly which form to use.
Quick Answer: “Criteria” vs. “Criterion” (Simple Rule)
The short rule for Criteria vs Criterion is about quantity. One standard is a criterion. Two or more standards are criteria.
Correct: “Experience is the first criterion for this job.”
Correct: “Experience and education are the main criteria for this job.”
Incorrect: “Experience is the first criteria for this job.”
Why: “First” points to one standard, so the singular form is needed.
Easy Memory Trick
Look at the ending. -ON means ONE: criterion. -A means many: criteria.
The same pattern appears in “phenomenon” and “phenomena.”
What Does “Criteria” or “Criterion” Mean?
A criterion is a standard or rule used to judge something or make a decision. It answers the question, “What will I check before I decide?”
Criteria is the plural form. The word comes from Greek, where it referred to a means of judging. English kept the Greek plural.
How People Actually Use “Criteria” and “Criterion”
Real usage and the standard rule do not always match. Knowing both helps you choose well.
In Casual Conversations
In speech, many people say “What’s the criteria?” or “The criteria is simple.” Listeners rarely notice, so the habit spreads.
In Professional Writing
Edited writing is stricter. Editors, teachers, and style-conscious writers expect “criteria” to take a plural verb and “criterion” to be used for a single standard.
Why This Happens
“Criteria” ends in -a, just like many singular English words such as “idea” and “area.” Also, most people meet the plural far more often than the singular. So “criteria” starts to feel like the normal word.
Criteria vs Criterion: What’s the Difference?
The difference in Criteria vs Criterion comes down to number and verb agreement.
- Criterion names one standard and takes a singular verb: “The main criterion is cost.”
- Criteria names several standards and takes a plural verb: “The main criteria are cost and safety.”
The meaning is the same. Only the number changes.
The Grammar Logic Behind “Criteria” vs. “Criterion”
English borrowed many words from Greek and Latin and kept their original plurals. That is why the pattern behind Criteria vs Criterion also appears in:
- phenomenon → phenomena
- criterion → criteria
These plurals do not follow the usual “add -s” rule, so they need to be learned.
Think in Terms of Quantity
Ask one question: How many standards am I talking about? One standard means criterion. More than one means criteria.
Example
“Speed is the only criterion.” (one standard)
“Speed and accuracy are the criteria.” (two standards)
Key Insight
The ending of the word tells you the number, so check the ending before you write the verb.
Criteria vs Criterion: Oxford Dictionary
Oxford dictionaries list criterion as the singular noun and criteria as its plural. Their usage notes also treat “criteria” used as a singular as incorrect in standard English. Dictionary wording can change, so check the current entry on the Oxford Learner’s Dictionaries or Oxford Languages sites if you need to cite it.
Is it Correct to say “Criterions”?
“Criterions” is rare. Some dictionaries, such as Merriam-Webster, record it as a variant plural. Most teachers, editors, and style guides still expect “criteria.”
If you want safe, standard English, use criteria for the plural. Avoid “criterions” in school, work, and formal writing.
“Criterion” Explained Clearly (With Examples)
Standard Meaning
A criterion is one rule, test, or standard used to judge.
Examples
- “Safety was the key criterion when we chose the car.”
- “Is price the only criterion you care about?”
- “A good sense of humor is my top criterion in a friend.”
Academic Example
“The essay must meet one important criterion: it must answer the question.”
Key Takeaway
Use criterion when you can point to a single standard. Words like “a,” “one,” “single,” “only,” or “main” often signal it.
Criteria vs criterion Examples
| Incorrect | Correct |
| “The criteria is clear.” | “The criteria are clear.” |
| “Cost is one criteria.” | “Cost is one criterion.” |
| “We have three criterions.” | “We have three criteria.” |
| “Which criterion are most important?” | “Which criteria are most important?” |
The pattern repeats: match the form to the number, then match the verb.
“Criteria” Explained Clearly (With Examples)
Standard Meaning
Criteria means two or more standards used to judge something.
Examples
- “The criteria for the scholarship are listed online.”
- “Several criteria affect our final decision.”
- “What criteria did you use to pick a hotel?”
Business Example
“Our hiring criteria include experience, teamwork, and communication skills.”
Key Insight
Criteria takes a plural verb: are, were, have, include. If you write “criteria is,” pause and check.
Common Mistakes With Criteria vs Criterion
These are the errors that appear most often with Criteria vs Criterion:
- Adding -s to criteria: “criterias.” The word is already plural.
- Using “a criteria”: “a” signals one, so use “a criterion.”
- Writing “one of the criterion”: after “one of the,” use the plural: “one of the criteria.”
- Using “criterions” in formal writing: it is rare, so use “criteria.”
The Biggest Mistake People Make
The most common error is using “criteria” as a singular noun, as in “criteria is.”
What Goes Wrong
Writers see a word ending in -a and treat it as singular. They then pair it with “is,” “was,” or “has.”
Incorrect Examples
- “The only criteria is price.”
- “This criteria was not met.”
Correct Versions
- “The only criterion is price.”
- “This criterion was not met.”
- “These criteria were not met.”
Lesson
When you see “is” or “was” after the word, you need criterion. When you see “are” or “were,” you need criteria.
Also, read this: Apologize vs Apologise:
Side-by-Side Comparison Table
This table sums up Criteria vs Criterion at a glance.
| Feature | Criterion | Criteria |
| Number | Singular | Plural |
| Meaning | One standard | Two or more standards |
| Verb | is, was, has | are, were, have |
| Article | a, one, the | the, these, those, some |
| Example | “Price is a criterion.” | “Price and size are criteria.” |
Real-Life Examples of “Criterion”
Job Interviews
“Honesty is the one criterion I look for in a candidate.”
Buying a House
“Distance from work is my most important criterion.”
School Admissions
“Attendance is not a criterion for entry into this program.”
Competition Judging
“Originality is the deciding criterion in this contest.”
Criteria vs Criterion Pronunciation
Both words stress the second syllable.
- Criterion: kry-TEER-ee-un
- Criteria: kry-TEER-ee-uh
The only change is the final sound. Criterion ends in “-un,” and criteria ends in “-uh.”
Real-Life Examples of “Criteria”
Job Applications
“The listed criteria include a degree and two years of experience.”
College Admissions
“Admission criteria vary between universities.”
Product Reviews
“I rated each laptop on three criteria: speed, battery life, and price.”
Employee Evaluations
“Managers review performance against agreed criteria every year.”
Why “Criteria” Sounds More Common
What Happens
People talk about several standards far more often than one. So they hear and read “criteria” much more than “criterion.”
The Result
The familiar plural starts to sound like the default word. That is why “criteria is” feels natural to many speakers.
Key Tip
Do not trust the sound. Trust the count. One standard needs criterion, and more than one needs criteria.
Academic and Professional Usage
Academic Writing
Teachers and examiners notice agreement errors. Write “The criteria were applied consistently,” not “The criteria was applied.”
Business Reports
Reports often list standards, so criteria is frequent: “The vendor selection criteria are outlined below.” Use criterion when you single one out.
Research Papers
Research papers often mention inclusion or exclusion rules. Write “Each participant had to meet every criterion.” Here, “every” points to each single standard, so the singular form is correct. When you refer to the whole set, use “the inclusion criteria were.”
How to Avoid Confusion Every Time
The best way to settle Criteria vs Criterion in any sentence is a three-step check.
Step 1: Count the Standards
Ask how many standards you mean. One or many?
Step 2: Choose the Correct Form
One means criterion. More than one means criteria.
Step 3: Check the Verb
If the verb is singular (is, was, has), the noun must be criterion. If it is plural (are, were, have), the noun must be criteria.
Why This Works
The verb gives you a second clue. If the noun and the verb disagree, you have found the mistake.
What to Say Instead (Clear Alternatives)
If you are unsure, a simpler word can solve the problem.
Alternatives for Criterion
standard, test, benchmark, requirement, deciding factor, measure
Alternatives for Criteria
standards, requirements, benchmarks, guidelines, conditions, factors
Example
“Our main criterion is cost” can become “Our main requirement is cost.”
“Our criteria are cost and quality” can become “Our standards are cost and quality.”
Use these only when they fit the meaning. “Criterion” is more precise when you mean a standard for judging.
Quick Decision Guide (Use This Instantly)
| If your sentence says… | Use… |
| a, an, one, only, single, each, every | criterion |
| is, was, has (after the noun) | criterion |
| two, several, many, all, these, those | criteria |
| are, were, have (after the noun) | criteria |
| “one of the ___” | criteria |
Criteria vs criterion Quiz
Choose the correct word. Test yourself on Criteria vs Criterion, then check the answers below.
- The most important ______ is honesty. (criterion / criteria)
- The selection ______ are listed on the website. (criterion / criteria)
- We have only one ______ for this prize. (criterion / criteria)
- Which of these ______ matter most to you? (criterion / criteria)
- Fix the sentence: “This criteria is unfair.”
- Fix the sentence: “We used three criterias.”
Answers:
- criterion
- criteria
- criterion
- criteria
- “This criterion is unfair.” (or “These criteria are unfair.”)
- “We used three criteria.”
Conclusion
The main point of Criteria vs Criterion is easy to remember. Criterion is singular, and criteria is plural. Match the verb to the noun: “is” with criterion, “are” with criteria. Avoid “criterias” and “a criteria.”
Next time you are unsure about Criteria vs Criterion, count your standards first. One standard needs “criterion.” Several need “criteria.” That one habit will keep your writing clear and correct.
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