class noun definition in Teaching and learning topic from the Oxford Advanced Learner's Dictionary

class

 noun: Teaching and learning topic
1 [countable + singular or plural verb] a group of students who are taught together We were in the same class at school. She is the youngest in her class. He came top of the class. The whole class was/were told to stay behind after school. 2 [countable, uncountable] an occasion when a group of students meets to be taught I was late for a class. See me after class. She works hard in class (= during the class). I have a history class at 9 o'clock. 3 [countable + singular or plural verb] (especially North American English) a group of students who finish their studies at school, college or university in a particular year the class of 2008