See also: mass-noun
- A noun that normally cannot be counted.
- In English, mass nouns, such as information and money, may have no plural form (for example, *informations is invalid in most varieties of English), and they are not used with the indefinite article or numbers in almost all of their senses.
- Many mass nouns, such as whisky, can also be count nouns when they refer to a variety (“Scotch and Canadian whiskies”) or to denote a serving (“please bring us two whiskies”).
- Conversely many countable nouns can also be used as mass nouns.
noun describing something that cannot be counted