Churn
/tʃɜː(ɹ)n/
noun
A vessel used for churning, especially for producing butter.
“a butter churn”
Customer attrition; the phenomenon or rate of customers leaving a company.
The time when a consumer switches his/her service provider.
verb
To agitate rapidly and repetitively, or to stir with a rowing or rocking motion; generally applies to liquids, notably cream.
“Now the cream is churned to make butter.”
To produce excessive and sometimes undesirable or unproductive activity or motion.
To move rapidly and repetitively with a rocking motion; to tumble, mix or shake.
“I was so nervous that my stomach was churning.”