crater
noun
°A hemispherical pit created by the impact of a meteorite or other object.
°The basinlike opening or mouth of a volcano, through which the chief eruption comes; similarly, the mouth of a geyser, about which a cone of silica is often built up.
verb
°To collapse catastrophically; implode; hollow out; to become devastated or completely destroyed.
°To crash or fall.
synonyms: astrobleme, caldera