What is Rejoice ?
Rejoice is (verb) 1. to be very happy We all rejoiced to hear the news that the baby had been found. 2. to rejoice in to be happy at She rejoiced in the warm welcome that her family gave her. to rejoice in a name to have a curious name The cafe rejoices in the name of ‘The Snail and Banana’.
source: Easier English, Student Dictionary Upper Intermediate Level