CLASS

A collection of things sharing a common attribute

Example: "There are two classes of detergents"

A body of students who are taught together

Example: "Early morning classes are always sleepy"

People having the same social, economic, or educational status

Example: "The working class"

Education imparted in a series of lessons or meetings

Example: "He took a course in basket weaving"

A league ranked by quality

Example: "He played baseball in class d for two years"

A body of students who graduate together

Example: "The class of '97"

(biology) a taxonomic group containing one or more orders

Elegance in dress or behavior

Example: "She has a lot of class"