cull
C1/C2Formal, Neutral, Academic, Technical
Definition
Meaning
To select and remove inferior or surplus individuals from a group, typically for improvement or population control.
To reduce the number of something systematically; to select and gather from a variety of sources.
Linguistics
Semantic Notes
The word carries a connotation of selection, often with the purpose of improving quality or controlling numbers. It can be used neutrally in technical contexts (e.g., wildlife management) but can sound harsh or negative when applied to people or pets.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. 'Culling' is the standard term in both varieties for wildlife population control.
Connotations
In both varieties, it has potentially negative connotations when applied to sentient beings, but is a neutral technical term in agriculture, fisheries, and conservation.
Frequency
Slightly more frequent in British English due to extensive media coverage of agricultural and wildlife culls (e.g., badger cull).
Vocabulary
Collocations
Grammar
Valency Patterns
[NP] cull [NP] (from [NP])[NP] be culleda cull of [NP]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “to cull the herd (metaphorically: to remove underperformers)”
Usage
Context Usage
Business
Used metaphorically for reducing staff or discontinuing unprofitable products. 'The company will cull 10% of its workforce.'
Academic
Used in biology, ecology, and data science. 'The study required culling outlier data points.'
Everyday
Used for decluttering or selecting the best. 'I need to cull my wardrobe before we move.'
Technical
Specific term in wildlife management, agriculture, and software (e.g., memory culling). 'The park service authorized a cull to manage the elk overpopulation.'
Examples
By Part of Speech
verb
British English
- The government plans to cull badgers to control bovine TB.
- She culled the best recipes from her grandmother's notebooks.
American English
- The state will cull the deer population this winter.
- He culled key quotes from the interview for his article.
adverb
British English
- The herd was managed cullingly, with rigorous annual selection.
- Not applicable in common usage.
American English
- Animals were removed cullingly to maintain genetic diversity.
- Not applicable in common usage.
adjective
British English
- The cull list identified the oldest breeding stock for removal.
- Cull ewes were sold at a lower price.
American English
- Cull data was excluded from the final analysis.
- The cull fish were not released back into the lake.
Examples
By CEFR Level
- The farmer had to cull the sick chicken.
- We cull the bad apples from the basket.
- To improve the herd, they cull the weakest animals every year.
- The librarian will cull old books to make space.
- The controversial decision to cull the overpopulated deer species sparked public protest.
- From the vast archives, the historian culled only the most relevant documents.
- The software employs an algorithm to cull redundant data points automatically, optimising storage efficiency.
- Critics accused the regime of using the emergency laws to cull political opponents from key institutions.
Learning
Memory Aids
Mnemonic
Imagine a farmer picking (culling) the weak sheep from the FULL flock. CULL sounds like 'cull the full'.
Conceptual Metaphor
QUALITY CONTROL IS CULLING; POPULATION MANAGEMENT IS GARDENING (weeding out).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'кол' (stake).
- Avoid using as a direct translation for 'убивать' (to kill) unless in the specific context of selective removal.
- The Russian 'отбраковывать' is a close conceptual equivalent in technical contexts.
Common Mistakes
- Using 'cull' to mean simply 'kill' without the sense of selection/improvement.
- Confusing 'cull' with 'call'.
- Using it in overly casual contexts where 'pick' or 'choose' would be more natural.
Practice
Quiz
In which context is the use of 'cull' LEAST appropriate?
FAQ
Frequently Asked Questions
No. While it often has negative connotations when applied to living creatures, it is a neutral, technical term in fields like data science, library management, and agriculture, where it simply means 'to select and remove'.
The noun is also 'cull', as in 'The annual seal cull begins next month.' The gerund 'culling' is also very common.
Yes. You can cull data, cull information from reports, or cull items from a collection. It implies a careful selection process.
'Cull' implies a systematic, selective removal, often for a specific purpose like improving a group or controlling size. 'Kill' is a broader term for causing death and lacks this nuance of selection for a goal.