Fire up
Fire up verb - To rouse to strong feeling or action.
Usage example: the dynamic speaker fired up the audience as no one had previously done
Set off
Set off verb - To cause to function.
Mutual synonyms
Cite this Source
Set off and Fire up. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/fire_up/set_off
Fire up & Set off. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/fire_up/set_off>.
Set off or Fire up. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/fire_up/set_off.
Google Ngram Viewer shows how "fire up" and "set off" have occurred on timeline