Talking about Multi-variate Imputation, one of the techniques that are very common and familiar to every data scientist is the KNN Impute. Though KNN Impute might be a new term, KNN is not a new term and is familiar to everyone related to this field. Even if it is a new term for you, don't worry we have defined it for you in the next section. Let's define the KNN and make it familiar to the new aspirants.