vara
B2Formal, Academic, Technical
Definition
Meaning
Able to be changed or differing in amount or level.
An element, feature, or factor that is likely to change or vary, especially in a scientific or mathematical context.
Linguistics
Semantic Notes
As an adjective, describes something that is not constant or fixed. As a noun, it is a core concept in mathematics, science, and computing representing a quantity or data item that can assume different values.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Both use it primarily in academic and technical contexts.
Connotations
Neutral technical term in both varieties.
Frequency
Equally common and formal in both regions.
Vocabulary
Collocations
Grammar
Valency Patterns
[variable] + [noun] (e.g., variable costs)[verb] + [variable] (e.g., control for a variable)[adjective] + [variable] (e.g., key variable)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A variable in the equation.”
Usage
Context Usage
Business
Refers to costs that change with production levels, e.g., 'We need to reduce our variable costs.'
Academic
A fundamental concept in research design, e.g., 'The study examined three key variables.'
Everyday
Used to describe changeable weather, moods, or performance, e.g., 'His work quality is highly variable.'
Technical
In programming, a named storage location for data, e.g., 'Declare a string variable.'
Examples
By Part of Speech
verb
British English
- N/A - 'Variable' is not a verb. Use 'vary'. Example: 'The results vary considerably.'
American English
- N/A - 'Variable' is not a verb. Use 'vary'. Example: 'Prices vary by region.'
adverb
British English
- N/A - The adverb is 'variably'. Example: 'The drug was variably effective.'
American English
- N/A - The adverb is 'variably'. Example: 'The teams performed variably.'
adjective
British English
- The weather in April is notoriously variable.
- We offer a mortgage with a variable interest rate.
American English
- Her performance has been variable this season.
- The experiment had too many variable factors.
Examples
By CEFR Level
- British weather is very variable.
- My mood is variable.
- The speed of the wind is variable today.
- The cost depends on several variables.
- The study failed to control for an important variable.
- The results were influenced by too many external variables.
- The model incorporates both dependent and independent variables.
- Market demand is the most critical variable in our forecast.
Learning
Memory Aids
Mnemonic
Think of VARIABLE like VARIETY - something that has variety can change and is not always the same.
Conceptual Metaphor
CHANGE IS MOVEMENT (e.g., 'The data is all over the map', 'Prices are fluctuating').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating directly as 'разный' (different). In maths, it's 'переменная', not 'варьируемый'.
- Do not confuse the noun 'variable' with 'variant' ('вариант').
Common Mistakes
- Using 'variable' as a verb (e.g., 'It variables a lot' – incorrect). Use 'varies'.
- Confusing 'variable' (adjective/noun) with 'varied' (adjective meaning diverse).
Practice
Quiz
In which context is 'variable' used as a noun?
FAQ
Frequently Asked Questions
'Variable' means likely to change or capable of being changed. 'Varied' means including many different types or things (diverse).
It is neutral but most common in formal, academic, and technical contexts. In everyday speech, words like 'changeable' are often used.
The most direct opposite is 'constant' or 'fixed'.
No. The verb form is 'to vary'. 'Variable' is an adjective or a noun.