definition of ignite
Webster Dictionary (0.00 / 0 votes) Rate this definition: Ignite (verb) to kindle or set on fire; as, to ignite paper or wood. Ignite (verb) to subject to the action of intense heat; to heat strongly; -- often said of incombustible or infusible substances; as, to ignite iron or platinum. Ignite (verb) to take fire; to begin to burn