"Poculum" is a Latin word that refers to a cup or a drinking vessel. Apart from this, there are several words that can be used as synonyms for "poculum." Some of the alternatives include "chalice," "flagon," "goblet," "grail," "mug," "tumbler," "tankard," and "wineglass." While these words may not have exactly the same meaning as "poculum," they are often used interchangeably to describe any type of drinking or ceremonial vessel. No matter which synonym one chooses to use, they all evoke the imagery of a vessel designed to hold and dispense a liquid, whether it be water, wine, beer, or some other drink.