churn
C1Pronunciation
UK
- /tʃˈɜːn/
US
- /ˈtʃɜrn/
Description
- stir vigorously
- roil/foam
- upset (stomach)
- rapid turnover
- mass-produce
Think of making butter – that's churning! It means to shake or stir something up repeatedly, like cream into butter. But churn isn't just about food. Things can "churn" with activity, meaning they are constantly changing and moving. A company might have high employee churn, meaning lots of people are quitting and being replaced. Or your stomach might churn when you're nervous!
You’ll also hear churn in the phrase churn out, meaning to produce something in large quantities, often quickly and routinely: a factory can churn out cars, and a team can churn out reports or social media posts.
The image of a butter churn – a wooden tub with a dasher going up and down – is where the word comes from. It evokes constant motion, transformation, and sometimes even a bit of chaos. If something is in a state of "churn," expect things to be unsettled for a while.
To churn originally meant to agitate or stir liquid vigorously, like cream being turned into butter using a churn – a traditional wooden tool with a paddle that moves up and down. This physical action creates the constant movement needed to separate the fat from the liquid, resulting in creamy, delicious butter.
However, churn has expanded beyond just dairy! It now describes any kind of vigorous agitation or turbulent activity. A stormy sea might churn with waves, a political landscape can churn with debate and change, and your stomach might churn with anxiety before a big event.
Importantly, churn is often used to describe frequent changes or turnover, particularly in business. High employee churn means a company has a lot of people leaving and being replaced – it's a sign that something might be amiss. Similarly, customer churn refers to the rate at which customers stop doing business with a company.
Another very common use is the phrasal verb churn out: to produce a lot of something quickly, often with an emphasis on quantity over care or originality. A writer might churn out articles, or a factory might churn out identical parts day after day.
So whether you're picturing creamy butter, a restless sea, or a rapidly changing situation, churn always implies movement, agitation, and often, transformation – sometimes smooth, sometimes chaotic. It's a word that captures the energy of things constantly being mixed up and reshaped.
Examples
- 1
Rough water
The river was churning after two days of heavy rain.
- 2
Physical anxiety
My stomach churned as I waited outside the interview room.
- 3
Anxious thoughts
All night, her mind churned with questions she couldn't answer.
Pattern
mind churned with + questions/worries
was full of fast, uneasy thoughts
- 4
Movie production
That studio keeps churning out superhero movies.
Pattern
churn out + products/content
produce quickly and in large numbers
- 5
Data processing
The software can churn through millions of records overnight.
Pattern
churn through + large amount
process it quickly
- 6
Customer retention
The company is trying to reduce customer churn by improving support.
Domain
customer churn
customers leaving a service or company
Forms and spellings
4 forms open this card.
Main spelling
- churnnounverb
Forms
- churning-ing formverbnoun
- churnedpast tenseverbnoun
- churnspluralnounverb