Definition of churn

• v. t. - A vessel in which milk or cream is stirred, beaten, or otherwise agitated (as by a plunging or revolving dasher) in order to separate the oily globules from the other parts, and obtain butter.
• v. t. - To stir, beat, or agitate, as milk or cream in a churn, in order to make butter.
• v. t. - To shake or agitate with violence.
• v. i. - To perform the operation of churning.