The word "烘焙" is formed by combining two characters, each containing the fire radical (火) to indicate heat-related actions. "烘" consists of the fire radical on the left and the component "共" on the right, which may suggest pronunciation, and it means to bake or roast with dry heat. "焙" similarly uses the fire radical on the left with "倍" on the right, likely for phonetic cues, and it means to dry or cure over slow heat. Together, these characters form a compound word that specifically denotes the process of baking or roasting.