class

1a : a body of students meeting regularly to study the same subject Several students in the class are absent today.

b : the period during which such a body meets

c : a course of instruction is doing well in her algebra class

d : a body of students or alumni whose year of graduation is the same donated by the class of 1995

2a : a group sharing the same economic or social status the working class

b : social rank especially : high social rank the classes as opposed to the masses

c : high quality : elegance a hotel with class

3 : a group, set, or kind sharing common attributes: such as

a : a major category in biological taxonomy ranking above the order and below the phylum or division

b : a collection of adjacent and discrete or continuous values of a random variable

c : set sense 21

d : a property of a geometric curve that is equal to the number of tangents that can be drawn to it through any point not on the curve A curve is said to be of the nth degree or order when any right line meets it in n points and of the nth class when n tangents can be drawn to it through any assumed point.— George Salmon

4 : a division or rating based on grade or quality a class B movie

5 : the best of its kind the class of the league

6 : a data type in object-oriented programming that consists of a group of objects (see object entry 1 sense 6a) with the same properties and behaviors and that can be arranged in a hierarchy with other such data types

Definition of class

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