leti' noun English. Quartz used in producing fire: flint. Cultural Note. It is believed to come with lightning; if s.t. is struck by lightning, it is believed to have been hit by falling leti'. Example sentence: Subanen. Misipikan su nunuk, pu' liibu'an leti'. English. The strangler fern has splintered, because it was hit by leti' Ii.e. by lightning). c.f. ilat