ignite, light -- (cause to start burning; subject to fire or great heat; "Great heat can ignite almost any dry matter"; "Light a cigarette")
erupt, ignite, catch fire, take fire, combust, conflagrate -- (start to burn or burst into flames; "Marsh gases ignited suddenly"; "The oily rags combusted spontaneously")
inflame, stir up, wake, ignite, heat, fire up -- (arouse or excite feelings and passions; "The ostentatious way of living of the rich ignites the hatred of the poor"; "The refugees' fate stirred up compassion around the world"; "Wake old feelings of hatred")