define
C1Formal / Neutral
Definition
Meaning
To state or describe the exact meaning, nature, or essential qualities of something; to establish its boundaries or characteristics clearly.
To determine, fix, or make clear the identity, outline, or precise limits of something, whether abstract (a concept, relationship) or physical (a boundary). It can also mean to be the distinctive feature or characteristic of something.
Linguistics
Semantic Notes
Primarily used as a transitive verb. Often involves providing clarity, precision, or formal explanation. It can be used in both concrete (defining a border) and abstract (defining a philosophy) contexts. The past participle 'defined' is frequently used adjectivally (e.g., a well-defined process).
Dialectal Variation
British vs American Usage
Differences
Minimal lexical differences. Spelling of related nouns differs: UK 'definition', US 'definition' (same spelling, but US pronunciation may have flapped 't'). Minor preference in collocations; e.g., US English may use 'define' more frequently in business/tech contexts.
Connotations
Equally formal/neutral in both varieties. No significant connotative difference.
Frequency
Very high frequency in both, with near-identical usage patterns. Slightly higher frequency in US academic and corporate discourse.
Vocabulary
Collocations
Grammar
Valency Patterns
[NP] define [NP] (transitive)[NP] define [NP] as [NP/AdjP][NP] be defined by [NP][NP] be defined as [NP/AdjP]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “define the terms of engagement”
- “define the narrative”
- “to define against (to define something in opposition to something else)”
Usage
Context Usage
Business
Used to establish goals, roles, responsibilities, project scopes, and key performance indicators. 'We need to clearly define the project deliverables before we begin.'
Academic
Crucial for establishing precise terminology, concepts, theoretical frameworks, and research parameters. 'The study first defines the key variable 'emotional intelligence' as...'
Everyday
Used when asking for or giving the meaning of a word, or when discussing personal beliefs and boundaries. 'Can you define what you mean by 'fair'?' 'Our shared values define us as a family.'
Technical
Used in programming (e.g., to define a function, variable, or macro), mathematics (to define a set, rule, or theorem), and law (to define legal terms and jurisdictions).
Examples
By Part of Speech
verb
British English
- The treaty will define the maritime border.
- Could you define your position on the matter?
- The architect's style is defined by clean lines.
American English
- The contract clearly defines the responsibilities of each party.
- How do you define success in your personal life?
- That moment defined his entire career.
adverb
British English
- This is a definably British tradition.
- The edges of the shape were definably sharp.
American English
- His influence is definably present in the new policy.
- The flavours are not definably distinct.
adjective
British English
- We need a more clearly-defined process.
- He has a well-defined six-pack.
American English
- The report lacks a defined timeline.
- She has a very defined sense of style.
Examples
By CEFR Level
- Please define this word for me.
- The line on the map defines the country's border.
- It's hard to define happiness because it means different things to everyone.
- The law defines who is eligible to vote.
- The new policy aims to define the company's environmental commitments more rigorously.
- Cultural traditions often define how a community celebrates major events.
- The philosopher's early work sought to define the ontological parameters of consciousness.
- The constitution defines the limits of executive power in no uncertain terms.
Learning
Memory Aids
Mnemonic
Think of the line 'DE FINish line' — to define something is to draw a clear finish line or boundary around its meaning.
Conceptual Metaphor
DEFINING IS MARKING A BOUNDARY (e.g., 'define the limits'), DEFINING IS SHAPING/GIVING FORM (e.g., 'sculpture that defines the space'), DEFINING IS MAKING AN OFFICIAL RECORD (e.g., 'defined by law').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid confusing with 'determine' (определять) in all contexts. 'Define' is more about stating meaning/essence, while 'determine' is about establishing causality or making a decision.
- Do not overuse 'define' as a direct translation for 'характеризовать' (to characterize); 'characterize' often implies describing distinctive features, not just the core meaning.
- The Russian 'дефиниция' is a very formal, academic term, whereas English 'definition' is common in everyday use.
Common Mistakes
- Incorrect: 'He defined about the rules.' Correct: 'He defined the rules.' (No preposition needed before object).
- Incorrect: 'It defines as important.' Correct: 'It is defined as important.' (Requires passive or different structure).
- Incorrect: 'The dictionary defines.' Correct: 'The dictionary defines a word.' (Usually requires a direct object).
Practice
Quiz
In the sentence 'The treaty clearly defined the fishing rights,' what is the closest meaning of 'defined'?
FAQ
Frequently Asked Questions
No, while commonly used for word meanings, 'define' is extensively used for concepts, boundaries, roles, eras, characteristics, and parameters in many fields.
'Define' focuses on stating the precise, essential meaning or limits. 'Describe' focuses on giving a detailed account of characteristics, features, or events, which may not be limited to the core essence.
Yes, very frequently. E.g., 'A square is defined as a quadrilateral with four equal sides and four right angles.'
The standard noun is 'definition'. 'Definement' is archaic and not used in modern English.