From Longman Dictionary of Contemporary Englishsuspend disbeliefsuspend disbeliefto try to believe that something is true, for example when you are watching a film or play → suspend
Examples from the Corpus
suspend disbelief• Faculties of agriculture may be less important than faculties of planning and community development and the facility to suspend disbelief.• Talk about asking the audience to suspend disbelief.• At this point you have to suspend disbelief and take your faith in your hands.• If you want to suspend disbelief, you probably can. 