Foisons are plentiful, abundant, or copious quantities of something. Synonyms for the word foisons include profusion, plethora, heaps, loads, and multitude. These words refer to an immense amount of something, usually in excess or beyond what is necessary. Other synonyms for foisons include abundance, wealth, richness, bountifulness, and generosity. These words denote a great quantity of something that is desirable or beneficial. Foisons can also be expressed as glut, surplus, overabundance, or overplus. These words signify an excess or surplus of something that may not necessarily be needed or desired. Overall, foisons can be described in various ways, depending on the context and intended meaning of the word.