| mass noun |
| Definition -
A noun that can't be counted, e.g. information, furniture, and money.
Notes: 1. They usually can't be pluralized and are almost never used with indefinite articles. 2. This is in contrast to countable nouns, such as book, which can be pluralized. |
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Oxford English Dictionary - The term's first citation is from 1933: "Mass nouns never take a and have no plural." (L. Bloomfield Lang. xii. 205) |