What does "class" mean?

Additional senses

1. 2.A comprehensive division of animate or inanimate objects, grouped together on account of their common characteristics, in any classification in natural science, and subdivided into orders, families, tribes, gemera, etc.
2. 3.A set; a kind or description, species or variety. She had lost one class energies. Macaulay.
3. 4.(Methodist Church) One of the sections into which a church or congregation is divided, and which is under the supervision of a class leader. Class of a curve (Math.), the kind of a curve as expressed by the number of tangents that can be drawn from any point to the curve. A circle is of the second class. -- Class meeting (Methodist Church), a meeting of a class under the charge of a class leader, for counsel and relegious instruction.
4. 5.To arrange in classes; to classify or refer to some class; as, to class words or passages. Note: In scientific arrangement, to classify is used instead of to class. Dana.
5. 6.To divide into classes, as students; to form into, or place in, a class or classes.
6. 7.To grouped or classed. The genus or famiky under which it classes. Tatham.