nu
C2Highly technical/formal
Definition
Meaning
the thirteenth letter of the Greek alphabet (Ν, ν), representing the sound /n/.
Used as a symbol in mathematics, science, and statistics, often representing frequency, kinematic viscosity, or a neutrino.
Linguistics
Semantic Notes
In English, 'nu' exists almost exclusively as a borrowed letter name from Greek or as a technical symbol. It has no independent lexical meaning outside these contexts.
Dialectal Variation
British vs American Usage
Differences
No significant difference in usage. Pronunciations may vary slightly.
Connotations
Exclusively scholarly, technical, or academic.
Frequency
Extremely rare in general language; frequency is identical and confined to technical fields.
Vocabulary
Collocations
Grammar
Valency Patterns
[Nu] is used as a variable.The letter [nu] corresponds to /n/.The symbol ν (nu) represents...Vocabulary
Synonyms
Neutral
Weak
Usage
Context Usage
Business
Virtually never used.
Academic
Used in mathematics, physics, engineering, and statistics as a symbol (e.g., ν for frequency or kinematic viscosity).
Everyday
Not used, except when discussing the Greek alphabet.
Technical
Primary context of use. A standard symbol in formulae and scientific nomenclature.
Examples
By CEFR Level
- 'Nu' is a letter in the Greek alphabet.
- In the Greek alphabet, mu comes before nu.
- The physicist explained that the symbol ν (nu) often denotes the frequency of a wave.
- Kinematic viscosity, represented by the Greek letter nu, is a critical parameter in fluid dynamics calculations.
Learning
Memory Aids
Mnemonic
Think of 'new' but without the 'ew'—it's the 'new' (nu) letter you learn in the Greek alphabet after mu.
Conceptual Metaphor
LETTER IS A TOOL: 'Nu is used to denote frequency.'
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with Russian 'ну' (well, so), which is a discourse particle.
- It is not related to the English 'new', despite similar pronunciation.
Common Mistakes
- Pronouncing it as 'noo' (like 'knew') in a British context, where /njuː/ is standard.
- Using it as a standalone English word with meaning.
- Confusing the symbol ν (nu) with v (Latin vee).
Practice
Quiz
In which field is the symbol ν (nu) most commonly used?
FAQ
Frequently Asked Questions
It is an English word only in the sense that it is the accepted name for the Greek letter Ν, ν. It has no standalone meaning in English.
In British English, it's pronounced /njuː/ (like 'new'). In American English, it's often /nuː/ (like 'noo').
It is used as a symbol for various concepts, most commonly frequency (in physics) or kinematic viscosity (in fluid mechanics).
No, unless you are specifically referring to the Greek letter or a scientific concept that uses it. It is not part of general vocabulary.