insist on


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insist (up)on something

to demand something. (Upon is formal and less commonly used than on.) I want you here now! We all insist upon it! I insist on it too.
See also: on

insist on

v.
1. To demand something firmly and persistently: I insist on peace and quiet when I'm trying to work!
2. To continue with some behavior or course of action in spite of the disapproval of others: He insists on tapping his fingers on the desk, even though I've told him to stop.
See also: on