Flame and smoke are two essential elements of a fire, and they have several synonyms that can be used to describe them. For flame, some of the synonyms are blaze, fire, inferno, conflagration, and combustion. These words all convey a sense of heat and intense burning, with conflagration and inferno having a more dramatic and intense connotation.
Similarly, smoke can be described using words such as haze, fume, vapor, exhaust, or smog. Each of these words conveys a slightly different meaning, with smog generally used to describe a heavy, polluted smoke and vapor used to describe a lighter, more ethereal smoke.
Overall, using synonyms for flame and smoke can help add variety and depth to writing, particularly when describing scenes of fire or destruction.