igniteEnglishOxford American Thesaurusignite verb 1 he got to safety moments before the gasoline ignited: catch fire, catch, burst into flames, be set off, erupt, explode; burn up, burn, flame up; rare kindle. ▷antonyms go out. 2 he lit a cigarette which ignited the gas fumes: light, set fire to, set on fire, set alight, set burning, fire, kindle, inflame, touch off; informal set/put a match to. ▷antonyms extinguish. 3 the campaign failed to ignite voter interest: arouse, kindle, trigger, spark, instigate, excite, provoke, foment; agitate, stimulate, stir up, work up, whip up, incite, fuel, animate. ▷antonyms dampen.