Pelt down is a phrase used to describe the action of heavy rain falling rapidly and continuously. There are several synonyms for this term which can be used interchangeably. Some of the synonyms include pour down, lash down, bucket down, sheet down, tip down, and teem down. Each of these phrases captures the intensity and volume of rain hitting the ground. They can be used in different contexts to describe the same action, and one can choose a particular synonym depending on the tone and style of writing. Regardless of the synonym used, the primary meaning of rain falling heavily and rapidly remains the same.