class [ kl s ] n.
- A set, collection, group, or configuration containing members regarded as having certain attributes or traits in common; a kind or category.
- A division based on quality, rank, or grade, as: a. A grade of mail: a package sent third class. b. A quality of accommodation on public transport: tourist class.
- a. A social stratum whose members share certain economic, social, or cultural characteristics: the lower-income classes. b. Social rank or caste, especially high rank. c. Informal Elegance of style, taste, and manner: an actor with class.
- A level of academic development, as in an elementary or secondary school.
- a. A group of students who are taught together because they have roughly the same level of academic development. b. A group of students or alumni who have the same year of graduation. c. A group of students who meet at a regularly scheduled time to study the same subject. d. The period during which such a group meets: had to stay after class.
- Biology A taxonomic category ranking below a phylum or division and above an order. See Table at taxonomy.
- Statistics An interval in a frequency distribution.
- Linguistics A group of words belonging to the same grammatical category that share a particular set of morphological properties, such as a set of inflections.
tr.v. classed, class·ing, class·es
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- To arrange, group, or rate according to qualities or characteristics; assign to a class; classify.
- French classe, from Latin classis, class of citizens;
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The American Heritage ® Dictionary of the English Language, Fourth Edition
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