Cloud-burst is a term used to describe a sudden and heavy rain that lasts for a short period. The synonyms for cloud-burst include downpour, deluge, torrential rainfall, cloudburst and heavy rain. These terms are often used interchangeably in weather forecast reports and conversations. Downpour and deluge describe a heavy and continuous rain, while cloudburst refers specifically to a sudden and intense rain. Torrential rainfall and heavy rain are wider terms used to describe any heavy and prolonged rain. The use of these synonyms is important in conveying the intensity and speed of the rain, which can have serious implications for flooding and transportation.