A group, collection, category or set sharing characteristics or attributes. • A social grouping, based on job, wealth, etc. In Britain, society is commonly split into three main classes: upper class, middle class and working class. • The division of society into classes. • Admirable behavior; elegance. • A group of students in a regularly scheduled meeting with a teacher. • A series of lessons covering a single subject. • A single lesson in a series. • A group of students who commenced or completed their education during a particular year. A school class. • a grade, standard, level of education. • A category of seats in an airplane, train or other means of mass transportation. • A rank in the classification of organisms, below phylum and above order; a taxon of that rank. • Best of its kind. • A grouping of data values in an interval, often used for computation of a frequency distribution. • A collection of sets definable by a shared property, especially one which is not itself a set (in which case the class is called proper). • A group of people subject to be conscripted in the same military draft, or more narrowly those persons actually conscripted in a particular draft. • A set of objects having the same behavior (but typically differing in state), or a template defining such a set in terms of its common properties, functions, etc. • One of the sections into which a Methodist church or congregation is divided, supervised by a class leader.