churn
How to Use Churn
Learner’s notesIn plain EnglishTo stir something forcefully (like cream into butter), to mass-produce something quickly, or — in business — the rate customers walk away.
In a business context, "churn" almost always refers to customer loss, not production.
Word Forms
churned past tense, churns plural, churns singular
Fill the Gap
Can you complete this real example?
She _____ the cream for an hour to make fresh butter.
Etymology
From Old English cyrin/cyrne (the container) and cernan (to stir), of unclear deeper origin, related to Dutch karn and German Kirne.