Class

Class could mean:

• Social class refers to the differences between groups in societies or cultures, and is a basic idea in economics, sociology and other social sciences
• Class (education), a group of students in a course or lesson
  • class, a lesson, in education
  • class, short for a classroom

• Class (biology), a rank used in taxonomy
• Class (philosophy), distinguishes between classes and types
• Class (set theory), in mathematics
• Travel class

Media, entertainment and sport

• Character class in role-playing games and other genres
• Class (film), a romantic comedy released in 1983
• Class: A Guide Through the American Status System, a book by Paul Fussell
• The Class, a CBS sitcom which began in fall 2006
• Class, known as one-design in sailing, where boats built the same way race against each other

Technology

• Appliance classes, in making electric appliances
• Class (emission), a type of radio emission
• Ship class, in a navy, a set of vessels that are built the same way

Computer science

• Class (programming), related to object-oriented programming
• Class (file format), a Java file format
• Class (warez), a warez group that stopped being used
• Class attribute, a part of many HTML and XHTML elements, such as div and span, often to help apply styles

Railroads

• Class (locomotive), a railroad locomotive design as assigned by the railroad
• The classification of United States railroads by income:
  • Class I railroad
  • Class II railroad
  • Class III railroad

Other

• Classes of United States Senators
• CLASS, Community Leaders At Service of Society, a non-profit organization in Silicon Valley, California.
• "Class", British slang word meaning "great" or "fabulous".