variance
gb/vˈɛɹiəns/ us/vˈɛɹiəns/
B2
英语
~ 9300
义项
0 个义项
名词
B2
quantity
1
amount of difference between things
The amount of difference between things, or between something and what is usual or expected.
用法模式：
variance in [something]; variance between [things]
常见错误：
Learners often confuse "variance" with "variation." In everyday English, "variation" is more common for small changes over time or between things (e.g., "temperature variation"), while "variance" often sounds more technical or formal and refers to the degree of difference, sometimes in a measured or calculated way.
近义词
difference (More general and common; does not suggest measurement as strongly as "variance".)
反义词
uniformity (Emphasizes everything being the same, with no noticeable difference.)
搭配
variance in results
|variance between groups
|a wide variance
|considerable variance
|reduce variance
|price variance
主题
business
|science
|everyday_life
|core_vocabulary
例句
- There is a lot of variance in salaries between departments.
- The study found little variance between the two test groups.
- We need to understand the variance in customer behavior across regions.
- The teacher noticed significant variance in the students’ writing skills.
- Our monthly sales figures show too much variance for accurate forecasting.
学习者例句
- There is big variance in house prices in this city.
- We saw some variance in how the children answered the questions.
- The manager wants less variance in the daily numbers.
- There was little variance between the two test scores.
- The weather shows great variance from day to day here.
名词
technical
C1
quantity
2
statistical measure of spread
In statistics, a number that shows how much the values in a group of numbers are spread out around the average.
用法模式：
the variance of [a variable]; variance in [data]
常见错误：
Learners often confuse "variance" with "standard deviation." Variance is the average of the squared differences from the mean, while standard deviation is the square root of the variance and has the same units as the original data.
近义词
dispersion (A broader technical term for spread; not always a specific numerical measure like variance.)
反义词
constancy (If variance is zero, values do not change; they are constant.)
搭配
calculate the variance
|high variance
|low variance
|explain the variance
|variance in test scores
|variance component
主题
mathematics
|science
|statistics
|education
例句
- The variance of the sample was much larger than we expected.
- A high variance indicates that the data points are widely spread out around the mean.
- We used variance to compare the stability of the two production processes.
- The model explains 80% of the variance in exam scores.
- Reducing variance in the measurements will improve the reliability of the study.
学习者例句
- In this class we learned how to find the variance of a set of numbers.
- If the numbers are very different, the variance is high.
- If all numbers are the same, the variance is zero.
- The teacher used test scores to show an example of variance.
- Scientists use variance to talk about how data is spread.
名词
formal
C1
state
3
state of disagreement or conflict
A state where two things do not agree or do not match each other.
用法模式：
[something] is at variance with [something]
常见错误：
Learners may say *"in variance with"* instead of the more natural fixed phrase "at variance with" when they mean "in disagreement with." "In variance" is rare; use "at variance with" in most formal contexts.
近义词
conflict (Stronger and more general; can suggest active fighting, while "variance" is often about mismatch or disagreement in facts, ideas, or statements.)
反义词
accord (Suggests agreement and harmony, the opposite of being in disagreement.)
搭配
at variance with
|in variance with
|directly at variance
|wholly at variance
|be at variance
|stand at variance
主题
law
|politics
|formal_writing
|relationships
例句
- His latest statement is at variance with the data in the report.
- The witness’s account was at variance with the video evidence.
- These new guidelines are clearly at variance with existing company policy.
- Her actions were at variance with the promises she had made.
- The two documents are in complete variance on this point.
学习者例句
- His story is at variance with what she said.
- The report is at variance with the facts.
- Their public image is at variance with their real behavior.
- This rule is at variance with the old law.
- The numbers are at variance with our expectations.
名词
technical
C2
entity
4
official permission as an exception
An official document or decision that lets a person do something that the normal rules do not allow.
用法模式：
a variance to [do something]; a variance from [a rule]
常见错误：
Learners sometimes think this meaning of "variance" is just another word for "difference." In legal and planning contexts, "a variance" is a specific permission to break or change a rule, not just a general difference.
近义词
exemption (Similar idea of being released from a rule, but "variance" is more specific to planning, zoning, and regulatory contexts.)
反义词
compliance (Following the rules fully instead of receiving special permission to break them.)
搭配
grant a variance
|request a variance
|apply for a variance
|zoning variance
|building code variance
|variance from regulations
主题
law
|government
|business
|housing
例句
- The homeowner applied for a variance to build closer to the property line.
- The city council voted to deny the zoning variance.
- You will need a variance from the building code before starting construction.
- They obtained a variance that allows them to operate the store on weekends.
- Without a variance, the project would violate local height restrictions.
学习者例句
- We need a variance to build this tall fence.
- The city can give a variance if the rule is too strict.
- He asked for a zoning variance to open a restaurant there.
- The town did not grant the variance, so the plan stopped.
- The company got a variance from the normal safety rules.
语法
词典原形
variance
IPA
GB/vˈɛɹiəns/
US/vˈɛɹiəns/
音节与重音
vari - ance （2 个音节）
Stress on 1st syllable (vari)
词形变化
Noun
- Base: variance
- Plural: variance, variances
词族
Forms
variances
noun
Related words
Negative and opposite forms
invariable
adjective C1
invariably
adverb B2
Advanced or less common
variant
noun B2
invariance
noun
相关表达
at variance with
1/ˈæt vˈɛɹiəns wˈɪθ/
fixed phrase
formal
in disagreement or not matching
To be different from something in a way that shows disagreement or that the two things do not match.
例句
- His comments are at variance with the official company position.
- The court found that the new policy was at variance with the constitution.
- These results are sharply at variance with our earlier findings.