The phrase "stirs up" typically refers to the act of causing excitement, emotions, or feelings of unrest in others. Synonyms for this phrase include "agitates," "provokes," "instigates," "bothers," "troubles," "rousing," and "awakening." Additionally, "setting off," "inciting," "arousing," "igniting," and "sparking" can also be used to convey the same meaning. These synonyms can be used interchangeably, giving writers and speakers an array of options to express their thoughts and feelings. Whether in a scholarly article or a casual conversation, employing these various synonyms can add variety, richness, and impact to language and communication.