The Chinese word "种种" (zhǒngzhǒng) is formed through the process of reduplication, where the single-character noun "种" (zhǒng), meaning "kind", "type", or "variety", is repeated. This grammatical construction serves to pluralize and generalize the concept, transforming it from a singular "type" into a collective meaning of "all kinds of", "various", or "a multitude of". It functions as an attributive adjective, typically used in written or formal contexts to modify a following noun, emphasizing diversity or an unspecified assortment within a category, as in "种种问题" (various problems).