English definition of “insist”
/ɪnˈsɪst/ verb [I, T]
SAY › to say firmly that something is true, especially when other people do not believe you: [+ (that)] Mia insisted that she and Carlo were just friends.
DEMAND › to demand that something must be done or that you must have a particular thing: The school insists on good behaviour from its students. [+ on + doing sth] Frank insisted on doing all the work himself. [+ (that)] Gerlinde insisted that I stay for dinner.