Focus on the pronunciation of churn
English definition of “churn”
/tʃɜrn/ v [I/T]
› to move violently: [I] The water was churning and the boat was rocking. [M] The fish churned up the water when we threw them some food. [T] fig. Seeing the car ahead flip over churned his stomach. › To churn butter means to beat cream until it turns into butter using a special container.