uncountable noun

A mass noun, also known as an uncountable noun, refers to a substance or concept that cannot be counted individually. Unlike count nouns, mass nouns typically do not have plural forms, are not preceded by "a" or "an," and are used with singular verbs. Examples include "sand," "water," and "information". These nouns are often modified by words like "some," "much," or "more". While generally singular, some mass nouns can take plural forms in specific contexts, often for literary or academic emphasis, such as "waters" or "knowledges".123