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| | concrete -- Encyclopædia Britannica |
 | | Many philosophers, however, add a third category of collective names, or concrete universals, i.e., names of classes or collections of concrete things, distinct... |
 | | in philosophy, such entities as persons, physical objects, and events (or the terms or names that denote such things), as contrasted with such abstractions as numbers, classes, states, qualities, and relations. |
 | | Concrete is an artificial stone made from a mixture of water, sand, gravel, and a binder such as cement. |
| www.britannica.com /eb/article?tocId=9025104 (301 words) |
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