WordNet sense 1 (the process of combustion of inflammable materials producing heat and light and (often) smoke):

flame, flaming

WordNet sense 2 (feelings of great warmth and intensity):

ardor, fervency, fervor, ardour, fervidness, fervour

WordNet sense 3 (intense adverse criticism):

attack, blast, flack, flak

WordNet sense 4 (terminate the employment of):

can, dismiss, sack, terminate, force out, give the axe, give the sack, give notice, send away

WordNet sense 5 (provide with fuel):

fuel

WordNet sense 6 (call forth (emotions, feelings, and responses)):

arouse, elicit, evoke, kindle, provoke, raise, enkindle

WordNet sense 7 (start firing a weapon):

open fire

WordNet sense 8 (go off or discharge):

discharge, discharge, go off

WordNet sense 9 (the act of firing weapons or artillery at an enemy):

firing

WordNet sense 10 (destroy by fire):

burn, burn down