A loud percussive sound, like thunder. / (archaic) A thunderstorm.

plural of topiary

Expresses regret, remorse, or sorrow. / Used as a request for someone to repeat something not heard or understood clearly. / Used to correct oneself in speech. / Said as a request to pass somebody.

If the murdered corpse cannot be found, a person cannot be charged with murder. / (by extension) An accusation cannot be made without evidence.