The Oxford Thesaurus An A-Z Dictionary of Synonyms - flame n.

1) fire, blaze; conflagration: The flame began to lick about my feet. 2) passion, fervour, ardour, intensity, warmth, fire, zeal, feverishness, enthusiasm, eagerness: The flame of love is still burning. 3) boyfriend, girlfriend, lover, heartthrob, sweetheart, beau: Linda is an old flame of Trevor's. --v. 4) burn, blaze, glow, flare: Flaming embers from the chimney set fire to the roof. Here and there civil unrest flamed up in the countryside.