The term 'REHEAT, IN A WAY' can be solved by two crossword solutions: 'NUKE' (4 letters) and 'ZAP' (3 letters). NUKE is a slang term for microwave oven, which is a common kitchen appliance used to reheat food. ZAP is a slang term for using electricity to heat something, such as a heating pad or electric stove. Both terms refer to the act of reheating something in a different way than it was originally cooked.