<p><strong>noun</strong></p><ul><li>a number of persons or things regarded as forming a group by reason of common attributes, characteristics, qualities, or traits; kind; sort: a class of objects used in daily living.</li><li>a group of students meeting regularly to study a subject under the guidance of a teacher: The class had arrived on time for the lecture.</li><li>the period during which a group of students meets for instruction.</li><li>a meeting of a group of students for instruction.</li><li>a classroom.</li><li>a number of pupils in a school, or of students in a college, pursuing the same studies, ranked together, or graduated in the same year: She graduated from Ohio State, class of '72.</li><li>a social stratum sharing basic economic, political, or cultural characteristics, and having the same social position: Artisans form a distinct class in some societies.</li><li>the system of dividing society; caste.</li><li>social rank, especially high rank.</li><li>the members of a given group in society, regarded as a single entity.</li><li>any division of persons or things according to rank or grade: Hotels were listed by class, with the most luxurious ones listed first.</li><li>excellence; exceptional merit: She's a good performer, but she lacks class.</li><li>Hinduism.</li><li>any of the four social divisions, the Brahman, Kshatriya, Vaisya, and Shudra, of Hindu society; varna.</li><li>Compare caste (def 2).</li><li>Informal.</li><li>elegance, grace, or dignity, as in dress and behavior: He may be a slob, but his brother has real class.</li><li>any of several grades of accommodations available on ships, airplanes, and the like: We bought tickets for first class.</li><li>Informal.</li><li>the best or among the best of its kind: This new plane is the class of the wide-bodied airliners.</li><li>Biology.</li><li>the usual major subdivision of a phylum or division in the classification of organisms, usually consisting of several orders.</li><li>British University.</li><li>any of three groups into which candidates for honors degrees are divided according to merit on the basis of final examinations.</li><li>drafted or conscripted soldiers, or persons available for draft or conscription, all of whom were born in the same year.</li><li>Grammar.</li><li>form class.</li><li>Ecclesiastical.</li><li>classis.</li><li>(in early Methodism) one of several small companies, each composed of about 12 members under a leader, into which each society or congregation was divided.</li><li>Statistics.</li><li>a group of measurements that fall within a specified interval.</li><li>Mathematics.</li><li>a set; a collection.</li><li>the classes, the higher ranks of society, as distinguished from the masses.</li></ul><p><strong>adjective</strong></p><ul><li>Informal.</li><li>of high quality, integrity, status, or style: class players on a mediocre team.</li></ul><p><strong>verb</strong></p><ul><li>(used with object) to place or arrange in a class; classify: to class justice with wisdom.</li><li>Synonyms: rate, rank, type, categorize, group.</li><li>(used without object) to take or have a place in a particular class: those who class as believers.</li><li>(verb phrase) Informal.</li><li>to improve the quality, tone, or status of; add elegance, dignity, style, etc., to: The new carpet and curtains really class up this room.</li></ul>