churn
noun [ U ]
uk/tʃɜːn/ us(also churning) COMMERCE, MARKETING
the situation in which customers stop buying the products or services of a particular company, especially to buy them from a competitor:
Preventing customer churn is a major concern for mobile service providers, since 20-40% of customers leave their providers in a given year.
Compare
customer loyalty
HR
the situation in which employees leave their job and are replaced by new employees:
Employee churn for new hires increased by 33% for the third straight year.
churn
verb
uk/tʃɜːn/ us [ I or T ] COMMERCE, MARKETING
to stop buying the products or services of a particular company, especially in order to buy them from a competitor
[ I or T ] HR
to frequently replace employees with new employees
[ T ] STOCK MARKET
if stockbrokers churn investments or churn a client's account in order to make more money in commissions, they illegally buy and sell the client's investments more often than necessary:
The commission found that he violated the antifraud provisions of the securities laws when he churned three customer accounts.
Phrasal verb
churn sth out