(object-oriented programming) A class defined with at least one generic type in its parameters.

(Singapore, Hong Kong, informal) The middle class; specifically those who are too wealthy to qualify for welfare schemes but not rich enough to afford non-subsidized housing, access further opportunities or maintain lifestyle expectations.

(set theory) A class which is not a set.

A high-quality class of travelling (especially in airlines), higher than economy class or budget, lower than first class.

(art) A teaching session in which art students practice drawing or painting the human figure using a live (often naked) model

Lacking social rank or respectability.

(sociology) The social class of a given society that controls that society's political agenda, whether as formal aristocracy or party leadership or as an informal unit within democracies.

resentful feelings against people of a higher social class

(US, education) In colleges and universities, a day of the commencement season on which the senior class celebrates the completion of its course by exercises conducted by the members, such as the reading of the class histories and poem, the delivery of the class oration, the planting of the class ivy, etc.

(programming) Structured by defining classes of objects. / (Marxism) Based on social class. / Learning delivered in a class either online or in a classroom.