Analysis is the singular noun, and analyses is its plural one careful study is an analysis, two or more are analyses. Use analysis with “a” or “the” and a singular verb; use analyses with a plural verb.
I still remember the red circle on my first university essay. I had written “the two analysis show that sales fell” and felt sure it was right. After all, I had used the word a hundred times in class. My tutor underlined “analysis” and wrote one word in the margin: “analyses.” That tiny correction stayed with me for years. Later, I saw the same mistake in a work report a colleague asked me to check. He had written “a analyses of the market” at the very top of the page, where every manager would see it first. The word looks simple, but its plural breaks the normal rule. You do not add an “s” to make it plural. You change the ending from “-sis” to “-ses.” This is one of the trickiest spelling traps in English, because the plural looks and sounds almost like the singular. In this guide, you will learn why analysis is singular, why analyses is plural, and how to never mix them up again. By the end, the rule will feel simple and natural.
Analyses or Analysis: Quick Answer
Analysis is a singular noun. It means a detailed examination of something complex, done to understand it or to find its main features. For example: “Her analysis of the sales data was clear.” Analyses is the plural of analysis. It means two or more such examinations. For example: “The team’s analyses of the market all agreed.” The golden rule is simple: one study is an analysis, and several studies are analyses. Say “the analysis shows” for one, and “the analyses show” for more than one.
The Origin and Background of Analyses or Analysis
The word analysis is very old. Its first known use in English was in 1580. It comes from Medieval Latin analysis, borrowed from Ancient Greek análysis, meaning “a breaking up, a loosening, a solution of a problem.” That Greek word came from analýein, “to loosen, undo, dissolve, resolve into parts,” built from ana-, “up, throughout,” plus lýein, “to loosen, undo.” The picture inside the word is simple: you take something complex apart to see how it works.
The plural keeps its Greek ending, and that is where the trouble starts. In Greek, words ending in “-sis” form their plural with “-ses.” English kept that pattern for this whole family of words: thesis becomes theses, crisis becomes crises, diagnosis becomes diagnoses, and analysis becomes analyses. The verb came later. English built “analyze” from the noun, and British English spells it “analyse.” So the spelling looks odd only if you expect a normal English plural. Once you know the Greek pattern, the plural makes perfect sense.
Analyses or Analysis Explained: Key Differences
The difference is all about number. Analysis is one examination. Analyses is two or more. Both are correct words, and both are nouns. The only question is how many studies you mean.
| Term | Meaning | When to Use | Region/Context |
|---|---|---|---|
| Analysis | One detailed examination of something complex | For a single study or report | All English |
| Analyses | Two or more detailed examinations | For several studies or reports | All English |
| Analyze | The verb, to examine something in detail | For the action itself | American English |
| Analyse | The verb, to examine something in detail | For the action itself | British English |
Look at these examples. “Her analysis of the data was clear” talks about one study. “Their analyses of the data were clear” talks about several. “She analyzes the sales figures every week” uses the American verb. “She analyses the sales figures every week” uses the British verb. The two spellings differ by two letters, but those letters mark the difference between one and many.
See the full definition of analysis here: analysis definition.
Which Version Should You Use?
The right version is almost always the same one. Use this simple guide:
- For one study or report → use analysis. “The analysis shows that sales fell.” This is the singular noun, and it takes a singular verb.
- For two or more studies → use analyses. “The analyses show that sales fell.” This is the plural noun, and it takes a plural verb.
- For the action of examining → use analyze or analyse. “She analyzes the data every week” in American English, and “She analyses the data every week” in British English.
- For a person who does the work → use analyst. “The analyst presented her findings.” The analyst is the person; the analysis is the work.
- For global or neutral use → use analysis. It is the dictionary form, correct in British and American English, in formal and informal writing, in every region and every context.
A quick test helps. Ask yourself: how many? If the answer is one, write analysis. If the answer is two or more, write analyses. When in doubt, count the studies, not the words.
Common Mistakes with Analyses or Analysis
Writing “analysises” as the plural.
- ❌ “The analysises were clear.”
- ✅ “The analyses were clear.”
- Why: Words ending in “-sis” take “-ses” in the plural. Never add “-es” to analysis.
Using the singular with a plural verb.
- ❌ “The analysis show that sales fell.”
- ✅ “The analysis shows that sales fell.”
- Why: Analysis is singular, so it takes “shows,” “is,” and “was.” The plural analyses takes “show,” “are,” and “were.”
Using “analyses” for one study.
- ❌ “One analyses of the data was clear.”
- ✅ “One analysis of the data was clear.”
- Why: “One” always takes the singular. Analyses means two or more, so it can never follow “one.”
Writing “a analyses” instead of “an analysis.”
- ❌ “A analyses of the problem helped the team.”
- ✅ “An analysis of the problem helped the team.”
- Why: “A” and “an” go before singular nouns only. The plural analyses needs “some,” “several,” “the,” or a number.
Using “analysis” as a verb.
- ❌ “She analysis the data every week.”
- ✅ “She analyzes the data every week.”
- Why: Analysis is a noun, not a verb. The verb is analyze in American English and analyse in British English.
Analyses or Analysis in Real-World Examples
In a professional email:
- “Please find my analysis of the quarterly results attached.” (correct — one study, singular)
- “The three analyses all point to the same conclusion.” (correct — several studies, plural)
In a news headline:
- “New Analysis Shows Economy Growing Faster Than Expected” (correct — one study)
- “Analyses of the Vote Reveal a Divided Country” (correct — several studies)
social media post:
- “Just finished my analysis of the new phone — full video soon!” (correct — one study)
- “I read five analyses of the match, and they all disagree.” (correct — several studies)
formal document or report:
- “This analysis covers sales from January to June.” (correct — singular with “this”)
- “These analyses were prepared by independent experts.” (correct — plural with “these”)
Analyses or Analysis: Data, Trends & Usage
This topic is searched most by students, researchers, and job seekers. People search it when they write essays, theses, and work reports. The search intent is informational: readers want a quick, clear answer about which form to use. Analysis and analyses are searched most in English-speaking countries, especially the United States, the United Kingdom, Canada, India, and Australia. The confusion is biggest in academic writing, where “data analysis” is a phrase students write every day.
One insight matters now. The data jobs boom has made this spelling matter more than ever. Thousands of people now call themselves data analysts on CVs, in bios, and on LinkedIn. A wrong plural there is easy to spot and hard to undo. Always read your CV and your report again before you send them. A quick check takes two seconds and keeps your writing looking professional.
Analyses vs Analysis at a Glance
| Term/Variant | Meaning | Region/Context | Best Used When |
|---|---|---|---|
| Analysis | One detailed examination | All English | For a single study or report |
| Analyses | Two or more examinations | All English | For several studies or reports |
| Analyze | Verb, to examine in detail | American English | For the action, US spelling |
| Analyse | Verb, to examine in detail | British English | For the action, UK spelling |
| Analyst | A person who analyses things | All English | For the job title or person |
Frequently Asked Questions
Q: What does analysis mean?
A: An analysis is a detailed examination of something complex, done to understand its nature or to find its main features. It can also mean the written result of such an examination, like a report on sales data or a chemical test.
Q: How do you use analysis correctly?
A: Use analysis as a singular noun for one study. Say “an analysis” or “the analysis,” and pair it with a singular verb. “The analysis shows” and “The analysis was clear” are both correct.
Q: Analyses vs analysis: what’s the difference?
A: Analysis is the singular and analyses is the plural. They mean the same kind of examination, but analysis is one study and analyses is two or more. The verb forms change too: “the analysis shows” but “the analyses show.”
Q: Is “analysises” acceptable in formal writing?
A: No. Analysises is not a word in standard English. The plural of analysis is analyses, following the Greek “-sis” to “-ses” pattern, like thesis to theses and crisis to crises.
Q: Which version is correct: analyses or analysis?
A: Both are correct. Analysis is correct for one study, and analyses is correct for two or more. The mistake is using one where the other belongs, like “one analyses” or “the analysis show.”
Q: Where does analysis come from?
A: Analysis comes from Medieval Latin analysis, borrowed from Ancient Greek análysis, meaning “a breaking up, a loosening.” It was built from ana-, “up, throughout,” plus lýein, “to loosen.” Its first known use in English was in 1580.
Q: Can analysis be used for a medical test?
A: Yes. “Blood analysis” and “chemical analysis” are standard phrases for laboratory tests. For several tests, use the plural: “The laboratory completed three analyses of the sample.”
Conclusion
The rule is short, and it is worth remembering. Analysis is the singular noun: one detailed examination, one study, one report. Analyses is the plural: two or more examinations, several studies, several reports. The pair follows the Greek pattern, where “-sis” becomes “-ses,” just like thesis to theses and crisis to crises. The confusion comes from the plural looking so much like the singular, but the verb gives you away every time: “the analysis shows” for one, and “the analyses show” for many. Remember that one fact and the spelling will stay with you. The next time you type the word, pause for one second and count the studies. If there is one, write analysis. If there are two or more, write analyses. Your readers will never notice the correct spelling, but they will always notice the wrong one. Now you know exactly which version to use. Go try it in your next essay, report, or CV, and bookmark this guide so you never second-guess analyses or analysis again.
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