reheat /ɹiːˈhiːt/noun 2verb 2forms 3phrases 1 noun2 •(informal) The act of heating something again.I gave the potatoes a reheat. •(UK) An afterburner. verb2 •To heat something after it has cooled off, especially previously cooked food (also in figurative senses).I’m reheating some leftovers for dinner. •To become hot again after having cooled off (also in figurative senses).He put the soup on the stove to reheat. formsreheated · reheating · reheats Phrases with reheat reheat someone's nachosTo recreate or emulate something done before; to rehash; usually refers to celebrities or influencers.